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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.
wires, shock sensors, glass sensors, relays, sirens, speakers, compact disc players; audio tape, cassette and disc recorders and players; compact disc player with magazine for holding and playing multiple discs and hard disc drive memory for temporarily storing disc content for easier access; video disc recorders and players; portable compact disc players; portable audio tape, cassette and disc players; digital audio tape recorders and players; combination disc players which play both video discs and compact or other audio discs; audio cassette players; video disc players capable of storing and automatically loading and playing multiple discs; stereo equalizers; stereo and surround sound amplifiers; stereo and surround sound receivers; loudspeakers; loudspeakers for use in cars and boats; loud speaker systems sold separately or together as a unit comprised of woofers, tweeters, or mid-range speaker cones contained in a cabinet; remote controllers for audio disc players, video disc players, video cassette recorders, stereo systems, microphones; wireless microphones; microphone receivers; combination radio and audio cassette players for use in cars and boats; video monitors for use in vehicles; tweeters; powered tweeters; woofers; powered subwoofers; subwoofers; audio dynamic expanders; audio dual amp balancers; audio four channel switching boxes; audio noise suppressor; audio electronic crossovers; electrical adaptors and electrical power extension cords for use in connecting audio and video products; switches, fuse holders; fuses; connectors; amplifier kits, comprised of amplifiers, power wires, fuse holders, fuses, connectors, extension cords, circuit breakers, and electrical power distribution blocks