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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; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
video equipment and accessories, namely, master control centers, convertors, switches, connectors, terminators, flush mounts, electrical wall plates, signal splitters, connection cables, patch cables, amplifiers, clips, microphones, and couplers; telephone equipment namely, telephones, converter extensions, extension cables, headsets, telephone pick up modular cords, indoor/outdoor ringers, selector switches, modular wiring blocks, couplers; audio equipment and accessories namely, tape care products, namely, 5 1/4 disc drive head cleaning kit consisting of diskette and solution and audio cassette cleaner kits consisting of cassette and solution headphones, extension cords, connecting cable, microphones, jumper cords, plugs, earphones, alligator clips, record inserts, speaker wire, ac adaptors, speakers, amplifiers, battery checkers, intercoms, fuses, audio level controls; audio, video, and/or telephone equipment, namely, jacks, adaptors, couplers, head cleaners; transformers; relays; buzzers; power cables; terminals; television sets; record and tape players; radios; radio/cassette recorders; power amplifiers for portable radios and tapes; cameras; satellite receivers; t.v. tuners; burglar alarms; joy sticks; light emitting diodes; liquid crystal displays; monitors; microcomputers; minicomputers; disk drives; printers; interface cards; test meters; calculators; diodes; transistors; resistors; capacitators; antennae; boosters; and coils