9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking supervision, life-saving and teaching apparatus and instruments, specifically, light emitting diodes for pilot signals; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, specifically, electric switches, electric relays, circuit breakers; apparatus for recording transmission or reproduction of sound or images, specifically, caller identification boxes; blank magnetic data carriers, blank compact recording discs; automatic vending machines and mechanisms for coin-operated apparatus, specifically, card readers, dispatchers and units for processing information, data, sound or images; cash registers, calculating machines, specifically calculators; data processing equipment, namely, data processors and computers; fire-extinguishing apparatus, namely, fire extinguishers