9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, supervision, life-saving and teaching apparatus and instruments, namely, cameras; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electrical controllers; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers; recording discs, namely, blank recordable CD-Rs and DVD-Rs; compact discs, namely, blank recordable compact discs; DVDs, namely, blank recordable DVDs; digital recording media, namely, blank recordable digital storage media; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; computer software for use in data base management; fire extinguishing apparatus