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.
aircraft respiratory gas supply systems and apparatus-namely, gas cylinders, oxygen generators, cryogenic gas converters, gas regulators, pressure gauges, valves, masks, goggles, storage boxes, and controls, signals, supply lines, disconnects, and connections therefor