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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.
audio and video components and accessories, namely, speaker cables, shielded interconnect cables, digital audio cables, digital video cables, analog video cables, video and audio power purification devices, ac power cables, ac power strips, interconnecting cables and parts thereof; interconnect and speaker termination systems, comprising devices for applying an electrical bias voltage