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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.
sound system equipment and accessories, namely, loudspeakers, transducers, volume controls, transformers and attenuators; baffles and back boxes and parts therefor; t-bar support bars, speaker-transformer assemblies, speaker-transformer-baffle assemblies, ceiling speakers, paging horns; cables and connectors; metal and wood racks and rack parts therefor; video products, namely, cameras, projectors, monitors, and video processing and source equipment, namely, electronic devices for video switching, amplifying, routing and cabling