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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.
microphones, receivers, transmitters, public address amplifiers, audio amplifiers, car amplifiers, radio receivers and tuners, equalizers, cassettes recorders for video and audio, megaphones, horn speakers, audio speakers; discussion system comprising microphones, speakers, amplifiers, booster units, cables, power supplies and parts for all of the above