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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.
fresh water and salt water test kits comprising scientific instruments, namely electronic analyzers for measuring, testing and detecting the levels of ph, ammonia nitrogen, nitrite nitrogen, alkalinity, carbon dioxide, chloride, dissolved oxygen and temperature in fresh water and salt water; fresh water and salt water testing instrumentation for monitoring and detecting contamination