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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.
electric and electronic alarm systems and replacement parts therefor, comprising consoles that receive and re-transmit signals, switch boards, power supplies, circuit registers, circuit recorders, control panels for alarm systems, alarm boxes, alarm sending stations, alarm transmitters, alarm box pedestals, phone emergency call boxes, electro-mechanical annunciators, electronic annunciators, tape or paper take-up reels, automatic night light switches, supervisory trouble-indicating panels, splice-type connectors, ground rod extensions, shunts, tappers and tapper desk mounts