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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.
life support systems for maintaining the essential human physical functions, comprised of on-board oxygen generators, gaseous oxygen cylinders, liquid oxygen dewars, supply valves, mechanical and electro-mechanical regulators, pilot masks, flow controllers, and integrated and man-mounted sensors for flow, pressure, oxygen, carbon dioxide, humidity, and temperature for use in the aerospace and defense industries