Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; Apparatus for recording, transmission or reproduction of sound or images; Magnetic data carriers, recording discs; Compact discs, DVDs and other digital recording media; Mechanisms for coin-operated apparatus; Cash registers, calculating machines, data processing equipment, computers; Computer software; Fire-extinguishing apparatus; Abacuses; Protection devices for personal use against accidents; Particle accelerators; Acid hydrometers; Azimuth instruments; Connections for electric lines; Acoustic couplers; Couplers [data processing equipment]; Actinometers; Electric batteries; Cleaning apparatus for sound recording discs; Aerometers; Electronic diaries; Surveying instruments; Electro-dynamic apparatus for the remote control of railway points; Needles for record players; Air analysis apparatus; Stills for laboratory experiments; Alarms; Anti-theft warning apparatus; Fire alarms; Sound alarms; Alcoholmeters; Fuse wire; Mouse mats; Alidades; Food analysis apparatus; Loudspeakers; Altimeters; Asbestos clothing for protection against fire; Ammeters; Enlarging apparatus [photography]; Amplifiers; Testing apparatus not for medical purposes; Anemometers; Calibrating rings; Anodes; Antennas; Levelling instruments; Anticathodes; Cathodic anti-corrosion apparatus; Anti-interference devices [electricity]; Anti-glare glasses; Theft prevention installations, electric; Global Positioning System [GPS] apparatus; Data processing apparatus; X-ray apparatus not for medical purposes; X-rays producing apparatus and installations, not for medical purposes; Apertometers [optics]; Downloadable music files; Downloadable music files; Distribution boxes [electricity]; Safety restraints, other than for vehicle seats and sports equipment; Asbestos gloves for protection against accidents; Astronomy (Apparatus and instruments for -); Audiovisual teaching apparatus; Headphones; Telephone receivers; Fire pumps; Life saving apparatus and equipment; Balancing apparatus; Precision balances; Lighting ballasts; Beacons, luminous; Road signs, luminous or mechanical; Life-saving rafts; Laboratory trays; Fire boats; Barometers; Weight measuring instruments; Fire beaters; Acidimeters for batteries; Anode batteries; Batteries for lighting; Vehicle batteries; Plates for batteries; Betatrons; Binoculars; Coils, electric; Holders for electric coils; Electromagnetic coils; Speaking tubes; Computer carrying cases; Fire pumps; Flashlights [photography]; Wire connectors [electricity]; Terminals [electricity]; Push buttons for bells; Signalling buoys; Signalling buoys; Tone arms for record players; Identification threads for electric wires; Compasses [measuring instruments]; Marine compasses; Spirit levels; Coaxial cables; Starter cables for motors; Optical fibers; Electrical cables; Surveying chains; Pince-nez chains; Speaker enclosures; Accumulator boxes; Branch boxes [electricity]; Switchboxes [electricity]; Junction boxes [electricity]; Petri dishes; Containers for microscope slides; Cash registers; Teller machines (Automated -) [ATM]; Socks, electrically heated; Calculators; Pocket calculators; Boiler control instruments; Gauges; Slide calipers; Shoes for protection against accidents, irradiation and fire; Cinematographic apparatus; Decompression chambers; Cameras; Juke boxes for computers; Signal bells; Workmen's protective face-shields; Solderers' helmets; Battery chargers; Battery chargers; Spools [photography]; Video game cartridges; Riding helmets; Head protection; Protective helmets for sports; Video cassettes; Telescopes; Cathodes; Electric batteries; Photovoltaic cells; Laboratory centrifuges; Locks, electric; Jackets [bullet proof]; Life jackets; Integrated circuit chips; DNA chips; Cyclotrons; Apparatus for editing cinematographic film; Magnetic tapes; Demagnetizing apparatus for magnetic tapes; Sound recording strips; Head cleaning tapes [recording]; Life jackets; Integrated circuits; Integrated circuits; Gradient indicators; Copper wire, insulated; Magnetic encoders; Bar code readers; Collectors, electric; Comparators; Compasses [measuring instruments]; Laptop computers; Capacitors; Optical condensers; Ducts [electricity]; Electricity mains (Materials for -) [wires, cables]; Electrical conductors; Acoustic conduits; Electricity conduits; Electric couplings; Commutation (Electric apparatus for -); Commutators; Converters, electric; Traffic cones; Distribution consoles [electricity]; Contacts, electric; Meters; Answering machines; Regulating apparatus, electric; Speed checking apparatus for vehicles; Franking (Apparatus to check -); Remote control apparatus; Electric installations for the remote control of industrial operations; Electro-dynamic apparatus for the remote control of signals; Crucibles [laboratory]; Pince-nez cords; Cell phone straps; Logs [measuring instruments]; Cosmographic instruments; Dressmakers' measures; Circuit closers; Galena crystals [detectors]; Chromatography apparatus for laboratory use; Chronographs [time recording apparatus]; Darkrooms [photography]; Washing trays [photography]; Measuring spoons; Waling glasses; Milage recorders for vehicles; Revolution counters; Appliances for measuring the thickness of leather; Densimeters; Densitometers; Distillation apparatus for scientific purposes; Detectors; False coin detectors; Smoke detectors; Metal detectors for industrial or military purposes; Diaphragms [acoustics]; Diaphragms [photography]; Diaphragms for scientific apparatus; Diagnostic apparatus, not for medical purposes; Transparencies [photography]; Centering apparatus for photographic transparencies; Animated cartoons; Dictating machines; Diffraction apparatus [microscopy]; Dynamometers; Money counting and sorting machines; Light-emitting diodes [LED]; Recording discs; Discs (Compact -) [audio-video]; Circular slide rules; Disks, magnetic; Optical discs; Cd roms; Reflecting discs for wear, for the prevention of traffic accidents; Releases (Shutter -) [photography]; Floppy disks; Distance measuring apparatus; Ticket dispensers; Circuit breakers; Dosimeters; Marine depth finders; Electrolysers; Transmitters of electronic signals; Transmitting sets [telecommunication]; Electric couplings; Ignition (Electric apparatus for remote -); Plugs, sockets and other contacts [electric connections]; Material testing instruments and machines; Epidiascopes; Balancing apparatus; Ergometers; Diving suits; Fire escapes; Sounding leads; Scanners [data processing equipment]; Teaching apparatus; Racks (Photographic -); Spherometers; Spectrograph apparatus; Mirrors for inspecting work; Mirrors [optics]; Skins (Apparatus for measuring the thickness of -); Drying racks [photography]; Stereoscopic apparatus; Stereoscopes; Stroboscopes; Cases fitted with dissecting instruments [microscopy]; Cases especially made for photographic apparatus and instruments; Glasses cases; Containers for contact lenses; Glasses cases; Electronic tags for goods; Temperature indicator labels, not for medical purposes; Photometers; Fire-extinguishing apparatus; Invoicing machines; Facsimile machines; Fermentation (Apparatus for -) [laboratory apparatus]; Optical fibers; Counter-operated apparatus (Mechanisms for -); Filters for ultraviolet rays, for photography; Camera filters; Filters for respiratory masks; Physics (Apparatus and instruments for -); Photographic flashlamps; Blueprint apparatus; Photocopiers; Glazing apparatus for photographic prints; Drying apparatus for photographic prints; Photometers; High-frequency apparatus; Frequency meters; Identification sheaths for electric wires; Sheaths for electric cables; Sleeves for laptops; Fuses; Goggles for sports; Sunglasses; Spectacles [optics]; Jigs [measuring instruments]; Galvanometers; Gas testing instruments; Gasometers [measuring instruments]; Surveying apparatus and instruments; Meteorological balloons; Sound recording apparatus; Sound recording carriers; Video recorders; Marking gauges [joinery]; Gloves for divers; Gloves for protection against accidents; Gloves for protection against X-rays for industrial purposes; Heliographic apparatus; Hydrometers; Hygrometers; Electrical cables; Magnetic wires; Telephone wires; Telegraph wires; Holograms; Furnaces for laboratory use; Electromagnetic coils; Magnets (Decorative -); Printers for computers; Incubators for bacteria culture; Tires (Automatic indicators of low pressure in vehicle -); Quantity indicators; Petrol level gauges; Electric loss indicators; Temperature indicating apparatus; Speed indicators; Water level indicators; Armatures [electricity]; Electrical inductors; Intercommunication apparatus; Interfaces for computers; Plates (Carriers for dark -) [photography]; Switches, electric; Inverters [electricity]; Ionization apparatus not for the treatment of air or water; Levelling staffs [surveying instruments]; Hands free kits for phones; Lactometers; Optical lanterns; Lamps (Darkroom -) [photography]; Fire hose nozzles; Pens (Electronic -) [visual display units]; Lasers, not for medical purposes; Cassette players; Compact disc players; DVD players; Readers [data processing equipment]; Optical character readers; Correcting lenses [optics]; Contact lenses; Eyepieces (Instruments containing -); Optical lenses; Lenses for eyeglasses; Close-up lenses; Neon signs; Signs, luminous; Mechanical signs; Limiters [electricity]; Signal lanterns; Magic lanterns; Safety tarpaulins; Flashing lights [luminous signals]; Magnifying glasses [optics]; Tape recorders; Wind socks for indicating wind direction; Fire hose; Junction sleeves for electric cables; Crash test dummies; Mannequins (Resuscitation -) [teaching apparatus]; Pressure measuring apparatus; Fire blankets; Hemline markers; Frames for photographic transparencies; Digital photo frames; Divers' masks; Protective masks; Respiratory masks, other than for artificial respiration; Mathematical instruments; Measuring instruments; Measuring devices, electric; Measuring instruments; Precision measuring apparatus; Measures; Speed measuring apparatus [photography]; Megaphones; Computer memory devices; USB flash drives; Mercury levels; Meteorological instruments; Metronomes; Rules [measuring instruments]; Microphones; Microprocessors; Microscopes; Microtomes; Sighting telescopes for firearms; Peepholes [magnifying lenses] for doors; Furniture especially made for laboratories; Modems; Monitors [computer hardware]; Monitors [computer programs]; Frames for glasses; Frames for glasses; Breathing apparatus for underwater swimming; Nautical apparatus and instruments; Naval signalling apparatus; Vehicles (Navigation apparatus for -) [on-board computers]; Satellite navigational apparatus; Navigational instruments; Levelling instruments; Spirit levels; Slide calipers; Lenses for astrophotography; Objectives [lenses] [optics]; Wafers for integrated circuits; Observation instruments; Releases (Shutter -) [photography]; Octants; Eyepieces; Punched card machines for offices; Ohmmeters; Wavemeters; Opticians' goods; Optical apparatus and instruments; Computers; Portable computers; Oscillographs; Egg-candlers; Oxygen transvasing apparatus; Ozonisers [ozonators]; Horns for loudspeakers; Micrometer gauges; Signalling panels, luminous or mechanical; Asbestos screens for firemen; Projection screens; Video screens; Fluorescent screens; Screens [photography]; Radiology screens for industrial purposes; Spark-guards; Surge arresters; Parking meters; Film cutting apparatus; Cinematographic film, exposed; X-ray films, exposed; Exposed film; Peripherals adapted for use with computers; Periscopes; Letter scales; Weighing apparatus and instruments; Weight measuring instruments; Lactometers; Weights; Slide calipers; Stands for photographic apparatus; Electric batteries; Electric batteries; Solar batteries; Steering apparatus, automatic, for vehicles; Nose clips for divers and swimmers; Pipettes; Pyrometers; Plane tables [surveying instruments]; Planimeters; Plumb lines; Plumb lines; Plotters; Pedometers; Polarimeters; Masts for wireless aerials; Pressure measuring apparatus; Coin-operated mechanisms; Prisms [optics]; Test tubes; Central processing units; Computer operating programs, recorded; Computer programmes [programs], recorded; Programs (Computer -) [downloadable software]; Electrical surge arrestors; Teeth protectors; Projectors; Transparency projection apparatus; Apparatus for changing record player needles; Electronic publications, downloadable; Encoded identification bracelets, magnetic; Light-emitting electronic pointers; Eyeglasses; Chemistry apparatus and instruments; Radar apparatus; Radios; Vehicle radios; Radio pagers; X-ray photographs, other than for medical purposes; Radiological apparatus for industrial purposes; Radiotelephony sets; Walkie-talkies; Radiotelegraphy sets; Electrified rails for mounting spot lights; Mouse [computer peripheral]; Spectroscopes; Protection devices against X-rays, not for medical purposes; Choking coils [impedance]; Audiovisual receivers; Measuring glassware; Rectifiers; Nets for protection against accidents; Safety nets; Reducers [electricity]; Refractometers; Refractors; Distance recording apparatus; Pressure indicators; Time recording apparatus; Slide-rules; Carpenters' rules; Rules [measuring instruments]; Stage lighting regulators; Speed regulators for record players; Voltage regulators for vehicles; Grids for batteries; Relays, electric; Hourglasses; Clocks (Time -) [time recording devices]; Rheostats; Wrist rests for use with computers; Apparatus for the reproduction of sound; Personal stereos; Portable media players; Resistances, electric; Breathing apparatus, except for artificial respiration; Respirators for filtering air; Retorts; Sprinkler systems for fire protection; Juke boxes, musical; Knee-pads for workers; Scales (Lever -) [steelyards]; Clothing especially made for laboratories; Fire resistant clothing; Screw-tapping gauges; Saccharometers; Salinometers; Life jackets; Satellites for scientific purposes; Railway traffic safety appliances; Light (Traffic- -) apparatus [signalling devices]; Semiconductors; Fog signals, non-explosive; Signals, luminous or mechanical; Sextants; Whistle alarms; Signalling whistles; Dog whistles; Simulators for the steering and control of vehicles; Sirens; Games software; Computer programmes [programs], recorded; Sonars; Sounding lines; Probes for scientific purposes; Sounding apparatus and machines; Sound transmitting apparatus; Sound locating instruments; Magnetic data carriers; Optical data carriers; Retorts' stands; Sulfitometers; Adding machines; Switchboards; Electricity control panels; Distribution boards [electricity]; Electronic display boards; Tachometers; Covers for electric outlets; Ear plugs for divers; Pressure indicator plugs for valves; Integrated circuits; Smart cards [integrated circuit cards]; Encoded magnetic cards; Identity cards, magnetic; Taximeters; Computer keyboards; Teleprompters; Telephones; Telephone transmitters; Mobile phones; Phototelegraphy apparatus; Telegraphs [apparatus]; Telemeters; Circuit breakers; Teletypewriters; Television apparatus; Coin-operated mechanisms for television sets; Time switches, automatic; Theodolites; Thermometers, not for medical purposes; Heat regulating apparatus; Temperature controlling apparatus; Thermostats for vehicles; Bells [warning devices]; Alarm bells, electric; Electric door bells; Record players; Downloadable ring tones for mobile phones; Micrometer screws for optical instruments; Totalizators; Electronic pocket translators; Clothing for protection against accidents, irradiation and fire; Protective suits for aviators; Fire resistant clothing; Screens for photoengraving; Electricity transformers; Step-up transformers; Transistors [electronic]; Transmitting sets [telecommunication]; Transponders; Protractors [measuring instruments]; Vehicle breakdown warning triangles; Triodes; Stands for photographic apparatus; Amplifying tubes; Capillary tubes; Discharge tubes, electric, other than for lighting; Pitot tubes; X-ray tubes not for medical purposes; Vacuum tubes [radio]; Thermionic valves; Magnetic tape units for computers; Disk drives for computers; Urinometers; Vacuum gauges; Electrified fences; Valves (Solenoid -) [electromagnetic switches]; Regulators [dimmers] (Light -), electric; Rods for water diviners; Variometers; Battery jars; Camcorders; Video cassettes; Video telephones; Glass covered with an electrical conductor; Optical glass; Monitoring apparatus, electric; Viscosimeters; Anti-dazzle shades; Viewfinders, photographic; Voltmeters; Voting machines; Buzzers.

Sale and distribution of electronic components.

Non-electric dust-removing installations and dust collection installations (ventilating installations).

Assembly and commissioning of devices for removing dust from air and gases, and maintenance thereof.