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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.
school management systems for controlling communications, record keeping, time keeping and media distribution in schools; namely, computer hardware and software and classroom control stations comprising consoles providing controls and connections for telephone, call switch, remote television power switch, data inputs, audio and video inputs and computer modem