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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.
alarm and security systems comprising control modules and central controllers for electrical and electronic apparatus, electrical, mechanical and electronic burglar, fire and intrusion alarms, fire and smoke detectors, automatic safety lights, timing controls for alarm and security systems and component parts therefor, open and closed circuit monitors, switches and sensors, electric magnetic contacts, relays, tranmitters, receivers and processors of electronic signals