9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking, life-saving and teaching apparatus and instruments, namely, weighing scales, and cameras; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electrical transformer; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers, blank recording discs; blank compact discs, blank DVDs and other digital recording media being blank optical discs; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; downloadable computer software featuring music; fire-extinguishing apparatus