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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.
access control systems, comprising vandal resistant housings, speakers, microphones, memories for storing telephone numbers and corresponding code numbers, electric luminescent display panels and liquid crystal display panels, keypads, autodialers, and gate/lock control circuitry, for establishing communication between persons in a secured location and persons desiring to enter the secured location through a locked gate or door