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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.
recreational vehicle electrical equipment, namely, an electric power storage and control system utilizing lithium batteries located within a recreational vehicle for charging, storing, monitoring and distributing dc power as well as converting and distributing 120 volt ac electric power for a vehicle air conditioner and other electric loads, namely, lights, televisions, space heaters, electric stove, refrigerator, electric fans, window defrosters, and electric motors operating room extensions and retractable steps