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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.
portable and switchboard graphic ammeters, voltmeters, wattmeters, power-factor meters, and frequency-meters; portable and switchboard indicating frequency-meters, power-factor meters, and reactive-factor meters; shunts for direct-current meters, maximum-demand meters, synchronizers and synchroscopes, watt-hour meters; instrument-transformers, watt-hour-demand meters, temperature-indicating instruments, polyphase power-factor meters, speed-counters, speedometers, cyclometers, tachometers