9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, 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; Digital recording media; Mechanisms for coin-operated apparatus; Cash registers; Calculators; Data processing hardware; Computers; Computer software; Fire-extinguishing apparatus; Teeth protectors; Plumb lines; Protective and safety equipment; Ventilation suits