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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.
satellite communications ground station equipment-namely, receivers, transmitters, [ antennas, frequency converters and digital earth terminals; ] cable television (catv) equipment-namely, antennas and headend apparatus, coaxial cable, set-top terminals, taps and passives, video receivers and low noise amplifiers; test and measurement instruments-namely, noise and vibration analyzers, wave and spectrum analyzers and antenna testers; electronic instrumentation and automatic test equipment-namely, microwave antenna testers, bit error rate testers and intermediate frequency (if) noise testers; energy management products-namely, residential and commercial power usage control apparatus; and wireless home security apparatus, alarms, and parts therefor