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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.
weather measuring instruments, namely, translators, transmitters, wind speed, wind direction and temperature sensors; and particle measuring instruments, namely, airborne particle counters, liquid borne particle counters, particle counters for remote monitoring, particle counters for clean room validation, nebulizers, spectrometers, pulse height analyzers and particle counting monitoring systems comprised of remote particle sensors, signal processor unit and software; diluters and high pressure diffusers used primarily to measure high pressure gas