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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.
water and wastewater flow meters that measure level, velocity, and flow data in open channels and unpressurized conduits, and communicate with water quality parameter sensors, printers, scada systems, personal computers, pots and cellular telephones, and other peripheral devices for the purpose of water quality monitoring and management