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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.
telephone test equipment for distribution network testing, transmission testing, fault isolation, and mechanized network conformance testing, namely, volt-ohmmeters, resistance fault locators, time domain reflectometers, transmission impairment measurement meters, power spectral density meters, hand-held intelligent field access computers, lineman's test sets comprised of hand-held telephones, and wide-band insertion loss meters