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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.
electric connectors-namely, cable, chassis and audio connectors, modules and kits containing modules for in-line pads or filters, for in-line switchable pads or filters, for line low/high-impedance connector with smitch; and electrical and electronic instruments-namely, audio level recorders, audiotracers and audio delay units providing discrete time-incremented outputs from a single input, and accessories-namely, female-to-female, male-to-male and 3-pin female-to-phone plug adapters, inline transformers, nondetachable transformer assemblies, in-line switches,in-line powering units, in-line switchable attenuation pads and in-line amplifiers