Scientific, surveying, nautical, electric, photographic, topographic, meteorological, cinematographic, optical, weighing, measuring, signaling, checking, testing apparatus and instruments, namely, cameras, calculating scales, barometers, ammeters, gasometers, thermometers not for medical purposes, voltmeters, microscopes, magnifying glasses, telescopes, periscopes, test tubes, laboratory crucibles, ovens for laboratory experiments, laboratory furniture, electric luminous signaling panels, electric luminous and mechanical signaling panels, electronic scoreboards, apparatus for recording, transmission or reproduction of sound or images; radios, televisions, video cameras, cameras, audiovisual teaching apparatus, namely, video projectors, LCD projectors; remote control for radios, televisions, stereos; headphones, loudspeakers, megaphones, central processing units for processing information, data, sound or images and computers; printers for use with computers, laser printers, scanners, cash registers, calculators, bar code readers and their structural parts, navigation apparatus for vehicles on-board computers, blank magnetic and optical data carriers, blank diskettes, blank discs, blank cassettes, blank CD-ROMs for sound or video recording, editing appliances for cinematographic films, namely, DVD recording apparatus, digital video recorders; photography cameras and structural parts therefor, magnifying glasses and lenses, exposed camera films, exposed cinematographic films, exposed X-ray films, antennas, satellite antennas, amplifiers and their structural parts; mechanism for coin-operated apparatus, namely coin sorting machines; electronic ticket dispensers, automatic photography cameras, calculators, money counting and sorting machines, electronic apparatus for machines and devices, namely, cables for electrical signal transmission, apparatus for transmission of communication, digital data transmitters; semi-conductors, electronic circuits, integrated circuits, computer chips, Photovoltaic cells, diodes, electronic transistors, cards with integrated circuits, crystal oscillators, capacitors, liquid crystal displays, heat regulating apparatus, namely, thermostats, heat sensors, automation sensors, electric converters; converters, telephones, teletypewriters, fax devices, facsimile machines, telegraphs, telephone transmitters; photographic, electrostatic, thermic photocopiers; electric meters, water level indicators, gas meters, metered gasoline pumps for service stations, parking meters, time recording apparatus, magnetic cards, pre-paid telephone calling cards, magnetically encoded, magnetic identity cards for banking purposes, automatic open-close magnetic cards, electronic cards for electronic meters, weighing apparatus, namely, scales and balances; vehicle scales, detectors, namely, metal detectors, radon detectors, smoke detectors, carbon monoxide detectors, carbon dioxide detectors, smoke detectors, passive infrared detectors, motion detectors, photoelectric beam sensors, heat detectors; projection apparatus, namely, projection screens; X-ray producing apparatus and installations not for medical purposes, X-ray photographs not for medical purposes, radiological apparatus for industrial purposes, life jackets, life buoys, ear plugs for swimming, diving suits, eyeglasses for divers, survival suits, protective work gloves, eyeglasses, protective helmets, signal bells, signaling buoys, eye glasses, sunglasses, contact lenses, containers for contact lenses and their parts and accessories therefor; electrical plugs, electrical sockets, electric doorbells, fire alarms, sirens, electrical power control panels, electricity connectors, electric converters, electricity adapters, chargers for electric batteries, alarms not for vehicles, namely, alarm central units; alarms that utilize pressure sensitive pads to monitor patient or resident movement, alarms for the detection of inflammable gases, electric cables, electric wires, cables, namely, power cables, optical cables telecommunications cables, electronic cables; fiber optic cables and webers, electric accumulators, solar batteries, batteries, speed indicators, fuel indicators, temperature indicators, tachometers, speedometers, balancing apparatus, namely, tire balancing machines for land vehicles; vehicle breakdown warning triangles, reflecting discs for the prevention of traffic accidents, mechanical signs, flashing safety lights, remote control for junctions, fire-extinguishers, laser welding devices, electric soldering irons, welding electrodes, radar apparatus, namely, radar, radar detectors; sonars, sighting telescopes, lighting rods, plumb lines, measures, namely, measurement standard devices for nanometrology, namely measuring tools having a pattern in the micrometer or nanometer ranges; measuring apparatus for temperature and humidity levels in gases and solid substances, measuring apparatus, namely, bevels, rain gauges; fluorometers; measuring instrumentation and apparatus, namely, digitizers; automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges; oil level sensors, temperature sensors, pressure sensors, pressure gauges, tire pressure gauges; machines for dispensing pre-determined dosages of medication, electric curler for hair, electric door closers, electric door openers, automatic turnstiles, satellites for scientific purposes, electrolysers, galvanizing apparatus, namely, galvanometers; anodes, cathodes; screen filters for computers and televisions, remote control for vehicle door opener, magnets, decorative magnets, earplugs not for medical purposes