9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking and supervision, emergency and life-saving, and teaching apparatus and instruments, namely, tactical robots, computers, and humanoid robots with artificial intelligence for scientific purposes; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic recording media, namely, blank digital storage media; blank sound recording disks; blank recordable compact disks, blank recordable DVDs and other digital recording media, namely, blank optical discs; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; software for responding to and processing information from sensors; fire extinguishers