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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.
systems for monitoring the quality of water, namely, systems comprised of an electronic test unit comprising a computer processor, optical data-link, housing, pumps, pipes, tubes, containers, valves, solenoids, battery, and bio sensor; a control system for monitoring the quality of water comprising a computer processor, optical data-link, display panel, control panel, power supply, flood alarm, and software featuring a baseline database in the area of water quality monitoring