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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.
proportioning system consisting of reservoirs, valves, nozzle, lever and pipes for dispensing general purpose cleaners, glass cleaners, floor cleaners, air deodorizers, disinfectants, sanitizers and other concentrated liquid cleaning compounds