Nikon SLM SOLUTIONS

Metal castings made by 3D printers; metal castings made by 3D printers as form parts of metal; metal materials for building or construction; metal hardware; metal castings; alloyed steels; alloyed iron; alloys of metal; nickel alloys; aluminum alloys; carbon steels; metal in powdered form; metals in powder form for 3D printers; metal powders used in manufacturing; ferroalloys for further manufacture; iron carbon alloys; metals and metal alloys; molybdenum iron; non-ferrous metals and their alloys; common metal and their alloys; stainless steels; steel; steel alloys; titanium and alloys thereof; iron and steel; common metals and their alloys, ores; common metals, unwrought and semi-worked, for further manufacture; unprocessed and semi-processed metal for additive manufacturing; common metals, unwrought or semi-wrought; brackets of metal; foundry moulds of metal; chill-moulds [foundry]; slabs of metal including those from alloy steel and titanium; pipes of metal including those from alloy steel and titanium; floors made of metal alloys; wire of common metal alloys, except fuse wire; brazing alloys; metals in foil form for 3D printers; cast iron pipes; steel tubes; steel pipes; sheet in steel form; cast iron material for railroad tracks; iron wire; steel wire; stretchers for iron bands [tension links]; ores of metal; iron ores; rods of metal for welding; soldering wire of metal; rods of metal for brazing and welding.

3D printers; metal 3D printers; plastic 3D printers; ceramic 3D printers; metal working machines; machines for processing metal powder by means of electromagnetic radiation or particle radiation; fuel injection nozzles for engines; thrust chambers (parts of rocket engines); internal combustion engines and their parts, not for land vehicles; electric motors and parts thereof, other than for land vehicles; non-electric prime movers and parts thereof, not for land vehicles; turbine blades, not for land vehicles; jet engine housings, not for land vehicles; die casting molds; brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers; machine elements, not for land vehicles; laser melting machines for processing metal powders, ceramic powders, plastic powders and mixture of material powders thereof; ceramics processing machines; plastic processing machines; casting machines; vacuum casting machines; investment casting machines; laser sintering machines for processing metal powders, ceramic powders, plastic powders and mixture of material powders thereof; metalworking machine tools; machine tools for plastic processing; machine tools for ceramic processing; machine and apparatus for automatically unpacking products manufactured by 3D printers, metal working machines, ceramic processing machines and plastic processing machines from the aforementioned machines; surface treatment machines to depowdering material powders adhered to metal, ceramic and plastic products; machines and apparatus for conveying and loading/handling parts and accessories of 3D printers; machines and apparatus for loading powder materials to 3D printers, metal working machines, ceramic processing machines and plastic processing machines; sieves [machines or parts of machines]; mixing machines; material conveying machines; accessories of metalworking machines, plastic processing machines, ceramic processing machines and 3D printers; 3D bioprinters; shaping machines for metalworking; mechanical presses for metalworking; press dies for metal forming; continuous metal casting machines; foundry machines; toolholders for metalworking machines [machine parts]; honing machines for metalworking; cutting machines for metalworking; wire extruding machines; stereotype casting machines; milling machines for the treatment of ceramics and metal; grinding machines for the treatment of ceramics and metal; laser engraving machines; printing machines for use on sheet metal; rolling mills for metalworking; powder coating spray guns; metal pulleys [parts of machines]; welding machines, electric, for metalworking; laser welding devices; sintering machines for chemical processing; machining centers for metalworking; electronic plastic punching machines [surface processing of plastic printing]; embossing machines; filter presses.

Recorded, embedded, preinstalled and downloadable computer software for the manufacture of form parts; recorded, embedded, preinstalled and downloadable computer software for use in metal based 3D-printing; data processing software for the manufacture of form parts and for manufacturing technology; computer software; computers; downloadable computer software; computer software, recorded; packaged software; data processing software; downloadable cloud computing software; electronic control devices for controlling machines for processing raw materials, laser melting and laser sintering machines for processing raw materials, and casting machines; electronic control systems for machines; optical electronic control devices for guiding and focusing a path of a laser beam; measuring devices for use in machines for processing raw materials, laser melting and laser sintering machines for processing raw materials, and casting machines; measuring apparatus and instruments; detectors for measurement and quality control of materials processing by laser; computer software for controlling machines for the processing of raw materials, laser melting and laser sintering machines for the processing of raw materials, and casting machines; computer software for controlling machines based on 3D CAD data; computer software for controlling machines for the processing of raw materials, laser melting and laser sintering machines for the processing of raw materials, casting machines and machines based on 3D CAD data; electronic control systems for controlling machines for the processing of raw materials, machines for the processing of raw materials by laser, casting machine, vacuum casting machines and investment casting machines; measuring devices in the nature of testing equipment for measuring the temperature, pressure, position, form, velocity, mass, radiation or humidity of process workflows and workpieces for use in 3D printers or metal working machines for processing a raw material, or machines for processing a raw material using a laser, or casting machines, vacuum casting machines or investment casting machines; recorded and downloadable computer software for controlling machines for processing a raw material, for controlling machines for processing a raw material using a laser, or for controlling casting machines, in particular vacuum casting machines or investment casting machines; pre-recorded hard disk drives, optical data carriers, magnetic data carriers, flash memory featuring computer software for controlling machines for processing a raw material, for controlling machines for processing a raw material using a laser, for controlling casting machines, vacuum casting machines or investment casting machines, or for controlling machines based on 3D CAD data; recorded and downloadable computer software designed for use in metal 3D printing; recorded and downloadable computer software for use in metal based 3D-printing; telecommunication machines and apparatus; remote monitoring apparatus; optical machines and apparatus; detectors; compact discs [read-only memory]; flash memory cards; pre-recorded flash memory cards; hard disk drives; magneto-optical and optical data carriers; magnetic and optical data carriers; prerecorded magnetic data carriers; structural components of satellites; computer hardware for numerical controls; electrical controlling devices; electronic controllers for servo motors; remote control apparatus; microcontrollers; electric control devices for energy management; surveying apparatus and instruments; remote control telemetering machines and instruments; laser measuring systems; installations for measuring the temperature and humidity of gases and solids; metal hardness testing machines; boiler control instruments; chemistry apparatus and instruments; test adapters for testing printed circuit boards; metal detectors; humanoid robots with artificial intelligence for use in scientific research; lasers, not for medical purposes; X-ray apparatus not for medical purposes; threaded cable connectors of metal; protection devices against X-rays, not for medical purposes; smoke detectors; weighing apparatus and instruments; measures; 3D scanners; laser printers; apparatus for generating gas for calibration purposes; thermometers, not for medical purposes; super luminescent laser diodes; sensors for determining temperature; electronic numeric displays; blank USB flash drives; magnetic data media; optical data media; solid-state video recorders; intercommunication apparatus; microphones for telecommunication apparatus; telecommunication cables; optical scanners; optical profilers; optical breadboards; optical apparatus and instruments; semiconductors; optical sensors; optical fibers [light conducting filaments].

Retail or wholesale services for additive alloys for the production of iron, additive alloys for the production of steel, alloyed steels, alloyed iron, alloys of common metal, alloys of metal containing calcium and aluminum, alloys of metal, alloys of nickel, alloys used for casting, aluminum, aluminum alloys, bar steel, bars made of titanium, bars of metal, brazing alloys, bronze, cadmium, carbon steels, cast iron, cast steel, casting alloys, chrome iron, chromium, cobalt-chrome, unprocessed cobalt, common metal alloys, common metals, common metals and their alloys including stainless steel, copper unwrought or semi-wrought, ferrochrome, ferroalloys, ferrotitanium, ferrous metals, German silver, germanium, glucinium, hafnium, indium, iron, iron alloys, iron carbon alloys, lead-tin alloys, limonite, magnesium, magnesium alloys, manganese, metals, molybdenum, molybdenum iron, nickel, nickel alloys, nickel-silver, nickel-chromium-based alloys, niobium, non-ferrous metals, non-ferrous metal alloys, plated steels, metals in powder form, pyrophoric metals, sheet iron, sheet metal, sheet metal for roofing, sheet steel, sheet piles of metal, sheets of aluminum, sheets of metal, sheets of metal including those from alloy steel and titanium, silicon iron, metal soil vents, stainless steel, steel, steel alloys, steel unwrought or semi-wrought, metal tantalum, tantalum and its alloys, tin and its alloys, titanium and its alloys, titanium iron, tombac, unprocessed and semi-processed metal, not specified for use; retail or wholesale services for 3D printers, metalworking machines, plastic processing machines, ceramic processing machines, electrical machinery and apparatuses and parts thereof; retail or wholesale services for machine and apparatus for automatically unpacking products manufactured by 3D printers, metal working machines, ceramic processing machines and plastic processing machines from the aforementioned machines; retail or wholesale services for surface treatment machines to depowdering material powders adhered to metal, ceramic and plastic products; retail or wholesale services for machines and apparatus for storage and conveying parts and accessories of 3D printers; retail or wholesale services for machines and apparatus for provision of powder materials to 3D printers, metal working machines, ceramic processing machines and plastic processing machines; retail or wholesale services for sieves [machines or parts of machines]; retail or wholesale services for mixing machines; retail or wholesale services for material conveying machines; retail or wholesale services for measuring machines and apparatus; retail or wholesale services for accessories of metalworking machines, plastic processing machines, ceramic processing machines and 3D printers; retail or wholesale services for machines for processing metal powder, ceramic powder or plastic powder; retail or wholesale services for machines for processing metal powder, ceramic powder or plastic powder using laser; retail or wholesale services for casting machines, vacuum casting machines and investment casting machines; retail or wholesale services for electronic control systems for controlling machines for processing a raw material; retail or wholesale services for electronic control systems for controlling machines for processing a raw material using a laser and for controlling casting machines, casting machines and investment casting machines; retail or wholesale services for measuring apparatus for controlling machines for processing a raw material, for controlling machines for processing a raw material using a laser and for controlling casting machines, casting machines and investment casting machines; retail or wholesale services for computer software for controlling machines for processing a raw material, for controlling machines for processing a raw material using a laser, and for controlling casting machines, vacuum casting machines and investment casting machines; retail or wholesale services for prerecorded magnetic data carriers featuring computer software for controlling machines for processing a raw material, for controlling machines for processing a raw material using a laser, and for controlling casting machines, vacuum casting machines and investment casting machines and for controlling machines based on 3D CAD data; retail or wholesale services for computer software; retail or wholesale services for metal in powder form for 3D printers; retail or wholesale services for measuring apparatus; presentation of goods on communication media, for retail purposes; business merchandising display services; advertising; provision of information concerning commercial sales; providing business information; marketing; sales promotion for others; search engine optimization for sales promotion; retail services for pharmaceutical, veterinary and sanitary preparations and medical supplies; provision of an online marketplace for buyers and sellers of goods and services.

Cleaning services for brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or laser melting process; cleaning services for brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or laser melting process or by a manufacturing process containing laser sintering or laser melting; cleaning services by water jetting for brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or laser melting or by a manufacturing process containing laser sintering or laser melting; providing information in the field of repair of laser melting machines and laser sintering machines for processing metal powders, ceramic powders, plastic powders, plastic powders, casting machines; providing information in the field of repair of casting machines; installation, repair and maintenance of brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or laser melting process; installation, cleaning, repair, and maintenance of laser melting machines for processing metal powders, ceramic powders, plastic powders and/or composite material powders; installation, cleaning, repair, and maintenance of casting machines, vacuum casting machines, investment casting machines; installation, cleaning, repair, and maintenance of laser sintering machines for processing metal powders, ceramic powders, plastic powders and/or composite material powders; installation, cleaning, repair, and maintenance of machine tools for use in the laser melting and sintering machines and casting machines for processing metal powders, ceramic powders, plastic powders and/or composite material powders; installation, cleaning, repair, and maintenance of machine tools for use in electronic controlling machines for controlling machines for processing metal powders, ceramic powders, plastic powders and/or composite material powders; installation, cleaning, repair, and maintenance of measuring devices for use in machines for processing metal powders, ceramic powders, plastic powders; installation, cleaning, repair, and maintenance of measuring devices for use in laser melting and laser sintering machines for processing raw materials, and for use in casting machines; repair and maintenance of 3D printers; machinery installation; installation, cleaning, repair and maintenance of optical electronic control devices for guiding and focusing a laser beam; installation, cleaning, repair and maintenance of measuring devices for use in machines for processing powder materials; installation, cleaning, repair and maintenance of measuring instruments for measuring and quality control of material processing by laser; construction consultancy; repair or maintenance of metalworking machines and tools; repair or maintenance of plastic processing machines and apparatus; repair or maintenance of ceramic processing machines and apparatus; cleaning of metalworking machines; cleaning of plastic processing machines; cleaning of ceramic processing machines; repair or maintenance of measuring machines and instruments; repair or maintenance of optical machines and instruments; construction; cleaning of industrial premises; vehicle cleaning; automotive refinishing; cleaning of furniture; leather care, cleaning and repair; disinfecting; rental of sterilizers for medical instruments; installation, repair and maintenance of heating equipment; information technology consultancy relating to installation, maintenance and repair of computer hardware; installation of telecommunications network equipment incorporating blockchain technology; installation, care and repair of data processing apparatus; repair and maintenance of digital communication equipment; interference suppression in electrical apparatus; medical apparatus installation and repair; repair or maintenance of photographic machines and apparatus; clock repair or maintenance; strong-room maintenance and repair; rustproofing; vulcanization of tyres [repair]; maintenance of elevators [lifts] via remote monitoring systems; burglar alarm installation and repair; telephone installation and repair; knife sharpening; pump repair; restoration of works of art; rental of drainage pumps; repair of power lines; rental of battery chargers; hand tool repair; sanding services for brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or melting process.

Custom manufacture of metal parts; custom manufacture of machine parts of metal; custom manufacturing of metal products; custom manufacture of plastic parts; custom manufacture of machine parts of plastic; custom manufacturing of plastic products; custom manufacture of ceramic parts; custom manufacture of machine parts of ceramic; custom manufacturing of ceramic products; custom manufacturing for brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or melting process; surface grinding by scouring brackets of metal, fuel injection nozzles for engines, thrust chambers (parts of rocket engines), internal combustion engines and their parts, not for land vehicles, electric motors and parts thereof, other than for land vehicles, non-electric prime movers and parts thereof, not for land vehicles, turbine blades, jet engine housings, not for land vehicles, die casting molds, brackets and fixtures for metalworking machines, plastic processing machines, ceramic processing machines and 3D printers, structural components of satellites and space vehicles, medical implants made from artificial materials, surgical instruments, medical instruments, components of vehicle chassis, components of suspension systems for vehicles, housings for gearboxes and transmissions for land vehicles, manufactured or repaired by a laser sintering or melting process; custom 3D printing; 3D printing; rental of laser melting machines for processing metal powders, ceramic powders, plastic powders; rental of casting machines; rental of vacuum casting machines; rental of adhesive casting machines; rental of laser sintering machines for processing metal powders, ceramic powders, plastic powders; rental of metal treating machines and tools; rental of plastic processing machines; rental of ceramic processing machines; rental of 3D printers; metalworking; metal treating; processing of plastic; processing of plastic materials; ceramic processing; custom assembling of materials for others; millworking; design printing for others; custom manufacture of computers for others; treatment of materials by laser beam; burnishing by abrasion; metal casting; laser scribing; die casting; glass polishing; rental of laser engraving machines; laser engraving; polishing of diamonds; custom manufacture of molds for use in industry; molding of plastic materials; custom manufacture of artificial limbs; custom manufacture of automobile covers; custom manufacture of boats; custom manufacturing of aircraft; applying finishes to textiles; timber felling and processing; paper finishing; processing of oil; stripping finishes; leather working; processing of rubber; gas processing services; processing of marble; processing and treatment of chemical reagents; production of energy; rental of electric welding apparatus; rental of printing machines and apparatus; rental of waste crushing machines; rental of air purification equipment; rental of water treatment equipment; rental of chemical processing machines; rental of electric power generators; rental of electrical transformers.

Provision of training courses on additive manufacturing and 3D printing; provision of training courses on the use and maintenance of additive manufacturing and 3D printing machines; arranging and conducting of workshops on the subject of additive manufacturing, 3D printing; arranging and conducting of workshops on the subject of the use and maintenance of additive manufacturing and 3D printing machines; organizing and conducting of seminars in the field of additive manufacturing, 3D printing; organizing and conducting of seminars in the field of the use and maintenance of additive manufacturing and 3D printing machines; educational services in the field of additive manufacturing and 3D printing; educational services in the field of the use and maintenance of additive manufacturing and 3D printing machines; coaching in the field of additive manufacturing, 3D printing; coaching in the field of the use and maintenance of additive manufacturing and 3D printing machines; providing educational demonstrations; computer education training; education and training services; teaching; teaching and instruction services; arranging, conducting and organization of seminars; arranging and conducting of seminars, congresses, conferences and symposiums; arranging of workshops and seminars; conducting of workshops and seminars; digital image services in the nature of editing of images related to electronic construction drawings and electronic technical drawings; instruction services; educational services; transfer of business knowledge and know-how [training]; arranging and conducting of colloquiums; organization of exhibitions for cultural or educational purposes; presentation of live show performances; organization of shows [impresario services]; providing online virtual guided tours; art exhibitions; digital library services; publishing of maps; production of sound and image recordings on sound and image carriers; providing online images, not downloadable.

Updating of computer software; updating and customizing of computer programs; customization of computer software; customized design of computer hardware and software; advisory services relating to computer software; computer programming and computer software design; technical project planning in the field of additive manufacturing and 3D printing; technological design in the field of additive manufacturing and 3D printing; engineering; technical engineering in the field of additive manufacturing and 3D printing; engineering services relating to metal forming systems; software engineering services for data processing; construction planning; construction research and design services; technical drawings and editing of electronic construction drawings and electronic technical drawings; design and engineering in the field of machines for the processing of raw materials, casting machines, vacuum casting machines, investment casting machines and machines for the processing of raw materials using a laser; mechanical engineering; design of machines, apparatus and instruments; designing computer software for use in controlling machines; developing and maintenance computer software for use in controlling machines for the processing of raw materials, machines for the processing of raw materials using a laser, casting machines and machines based on 3D CAD data; scientific research; industrial research in the field of machines for the processing of raw materials, casting machines, vacuum casting machines, investment casting machines and laser melting and laser sintering machines for the processing of raw materials; industrial research; installation, repair, rental and maintenance of computer software for controlling machines for the processing of raw materials, for laser melting and laser sintering machines for the processing of raw materials, and for casting machines; installation, repair, rental and maintenance of computer software for controlling machines for the processing of raw materials, for laser melting and laser sintering machines for the processing of raw materials, for casting machines and for machines based on 3D CAD data; engineering design and consultancy; engineering consultancy services; engineering research; updating and adapting of computer programs; computer engineering; structural engineering design services; design of computer files for use with 3D printers and machines for metal working; installation, rental and maintenance of computer software for controlling machines based on 3D CAD data (computer aided design); engineering and designing of laser melting machines for processing raw materials; engineering, designing, implementation and maintenance services relating to computer software for controlling machines; design and development of computer software; troubleshooting of computer software problems; scientific research and industrial research in the field of 3D-printing and additive manufacturing; computer-aided engineering design and drawing services; creation and editing of computer files in the nature of electronic construction drawings and electronic technical drawings for use with 3D printers and metalworking machines; rental of optical electronic control devices being computer peripheral devices for guiding and focusing a laser beam; rental of electric or optical measuring apparatus for use in machines for processing raw materials; rental of measuring apparatus; rental of measuring instruments for measuring and quality control of material processing by laser; computer design and development services; design and development of computer peripherals; computer technology consultancy; technical drawings; design and development of engineering products; design and development of new products; design of machines, apparatus and instruments; monitoring of computer system operation by remote access; computer system design and analysis; computer software design, computer programming, or maintenance of computer software; software as a service [SaaS]; providing virtual computer systems through cloud computing; cloud computing; providing non-downloadable computer software for cloud computing; computer rental; rental of computer software; platform as a service [PaaS]; design, maintenance, rental and updating of computer software; rental of peripheral devices for computers; providing temporary use of on-line non-downloadable single sign-on software; providing computer programs designed to the specifications of others; providing computer programs on data networks; design, development, maintenance and updating of computer software for data processing; testing and research services relating to machines, apparatus and instruments; quality control; product quality evaluation; industrial design; technical advice relating to computer hardware, peripherals and software; technological advice relating to computers, automobiles and industrial machines; design of telecommunications apparatus and equipment; engineering design services; research in the area of semiconductor processing technology; surveying [engineering]; testing of architectural ironmongery; design of interior decor; architectural consultancy; calibration of construction testing equipment; mechanical research; chemical analysis; culturing of cells for scientific research purposes; meteorological information; material testing; industrial x-ray inspection services; rental of laboratory apparatus and instruments; rental of measuring apparatus; rental of load banks for testing electrical power sources; rental of meters for the recording of energy consumption; engineering drawing services; providing online geographic maps, not downloadable; civil engineering drawing; cartography services; dress designing; graphic arts design; testing and analysis of goods being imported or exported for quarantine clearance purposes; rental of telescopes; calibration of nuclear density gauges.