9 [ Apparatus and equipment used for maintenance of aircraft and aircraft parts, aircraft electronics, topography, meteorology electricity, industry and optics for measurement and assessment, material testing tools and equipment, namely, barometers, ammeters, gas testing apparatus, sliding thickness gauges, measuring apparatus for temperature and humidity levels in gases and solid substances, thermometers, voltmeters, magnifying glasses, telescopes, periscopes, recording and playing devices for sound and image carriers other than communication equipment, apparatus for wireless radio transmission radios, televisions sets, video monitors, cameras, audio devices, namely, speakers, radios and stereos and replacement parts therefor, remote controls for radios, televisions, stereos and audio-visual equipment; earphones, loudspeakers, megaphones, headphones, intercoms, picture and slide projection apparatus, central processing units for processing data, computers, computer hardware, computer software for use in aircraft navigation, aircraft manufacture, aircraft repair and aircraft maintenance, database management, spreadsheets and word processing, computer printers, laser printers, scanners, navigation apparatus for vehicles, electronic components used on machines and equipment, namely, semi conductors, electronic integrated circuits, semiconductor chips, photovoltaic cells, diodes, transistors, printed circuit boards, crystal oscillators, capacitors, interface circuits, delay lines, liquid crystal displays, hybrid circuits, heat sensors, converters magnetic deflectors; communication equipment, namely, telephones, fax machines, facsimiles, automatic telephone exchanges, cable modems, radio transmitting and receiving sets, detectors, namely, radar detectors, viewing devices namely, computer monitors, non-medical x-ray apparatus, industrial radiological x-ray apparatus, emergency equipment, namely, flotation vests, safety belts for aircraft, protective garments, namely, gloves for protection against accidents, safety goggles and helmets, electrical apparatus, namely, plugs, inlets, distribution boxes, switches, circuit breakers, fuses, lighting ballasts, starter motors and alternators, circuit boards for use in elevator control, electrical connectors, electric driven pumps, electrical cable ducts, buttons, namely, electric switches, electric resistors, connectors and sockets used in electronics, high voltage power-line transmission machines and apparatus, apparatus used on electrical, electronic and telephone lines, namely, converters, electrical load, alignment, drive and handling, adaptors, charging appliances for rechargeable equipment, alarm central units, sirens; electric cables, and wires used on electrical, electronic and telephone lines, optic fibers, fiber-optic cables, power supplies; accumulator boxes, batteries, uninterrupted power supplies; speed, oil, fuel, temperature, electricity, quantity, water level, pressure and slope indicators, failure warning triangles for vehicles, illuminated and mechanical road signs, traffic signaling lights operating electrically or electronically or mechanically, road-crossing control devices, namely, flashing safety lights, fire-fighting vehicles, namely, fire trucks, fire-extinguishing tools and equipment, namely, water cannons, apparatus for electrical welding machines, namely, welding transformers; electric powered soldering irons, blast pipes, namely, welding electrodes for electrical spot welding and soldering equipment, radar, sonar, lightning rods, voltage surge protectors, electric openers for automatic doors for buildings, automatic, turnstiles, electrical or electronic door opening-closing assemblies, scientific purpose satellites; apparatus, anodes, cathodes ray tubes for electrolytic and galvanic coating, screen filters for computers and televisions, remote control opening-closing mechanisms for vehicle doors, magnets, and earplugs for soundproofing ]