9
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.
surface mounted electrical power distribution system consisting of prewired horizontal and vertical ballast, terminal caps, universal connectors, captive receptacles, universal receptacles, knock-out feedthroughs, [surge suppressors], inside corner conduit, outside corner conduit, couplers, and track end caps