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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.
electrical testing instruments for the measurement of ac electrical parameters, namely, voltmeters, amp meters, watt meters, power meters and for testing and calibration of electric metering installations; computer software for electrical testing instruments for the measurement of ac electrical parameters, namely, volts, amps, watts, va (volt-amperes), vars (volt-amperes reactive), and for testing and calibration of electric metering installations, namely, testing of meters, current transformers, potential transformers and wiring