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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.
electronic parts and components-namely, switches, jacks, connectors, sockets, motors, relays, solenoids, circuit breakers, and electrical clutches; magnetic recording and reproducing heads in the nature of audio and video tape recording and reproducing devices comprising cassette-type magnetic recording and reproducing devices and cartridge-type magnetic recording and reproducing devices; headphones, microphones, earphones and pillowphones; pluggable cord assemblies-namely, cord sets comprising electrical cords having jacks at their ends for connecting a headphone or microphone to an amplifier or tape recorder; and miniature electronic calculators