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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.
central vacuuming systems, sold as a unit, comprised of a central vacuum unit, hoses, wands, nozzles, brushes, crevice tools, filter cones, inlets, hose holders, accessory holders, felt pads, electric power nozzles, connectors, piping and tubing, and parts therefor for domestic and/or industrial use