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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.
helmets and protective headgear for use by aircrew and flying personnel, and parts therefore, namely, helmet shells, visors, visor covers, peaks, combs, neck capes, straps, strap fasteners, strap adjusters, helmet suspension systems comprised of crown and brow pads, adjustable nape strap, webbing and adjustable ear cups, helmet fitting pads, hearing protectors, microphones, earphones, connectors, breathing masks, helmet mounted displays, helmet mounted vision enhancements systems comprised of night vision goggles and mountings