9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, emergency and teaching apparatus and instruments, namely, electric cables, wires and cables for electricity mains, fiber optic cables, antennas, electricity transformers; apparatus and instruments for transforming, regulating or controlling electricity electric current; apparatus for recording, transmission or reproduction of sound or images; blank magnetic recording disks, blank CD-ROMSs for sound recording; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing apparatus, and computers