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; Compact discs, dvds and other digital recording media; Mechanisms for coin-operated apparatus; Cash registers, calculating machines, data processing equipment, computers; Computer software; Fire-extinguishing apparatus