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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 and audio signal distribution systems equipment and accessories, namely, video modulators, audio modulators, signal splitters, signal combiners, signal taps, rf amplifiers, coaxial cable panels, infrared remote control targets, infrared repeater/emitters, infrared engines, video cameras, coaxial cable connectors, character generators, genlock message generators, rf filters, rf attenuators and rf terminators