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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.
plant and factory monitoring systems-namely, interface and control equipment and auxilliaries comprising transmitters, alarm trips, isolators, indicators, signal conditioning amplifiers, dc to ac inverters, dc to ac converters, power supplies, analog and digital telemetry links, analog and digital telemetry apparatus, battery chargers, battery packs, logic elements, alarm annunciators and micro-processor computer packs