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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.
security systems and devices, namely, intruder alarms, intruder detectors, sensors for monitoring physical conditions and property to be protected, alarm panels, automatic telephone dialers, key pads, sound emitting devices, ac and dc power supplies, sold individually or as integrated systems