9 [ Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, supervision, lifesaving, and teaching apparatus and instruments, namely, flow meters, underwater sonar measuring devices, level measuring machines, audio and visual devices, namely, audiometers, audio-video receivers, and audio and visual recordings featuring machinery noises, acoustic meters, multimedia projectors, optical inspection apparatus, audible alarm signals, electronic testing devices for electronic parts, electronic simulators for processing sequences in machines and motors; apparatus and instruments for conducting, switching, transforming, accumulating, regulating, or controlling electricity, namely, semiconductors, electric current switches, electric transformers, batteries, voltage regulators, and electronic controls for motors; apparatus for recording, transmission, or reproduction of sound, data, or images; electronic apparatus for remote control of industrial operations; blank magnetic data carriers, blank recording discs; blank compact discs, blank DVDs, and blank digital recording media; data processing equipment and computers; instant messaging software; file sharing software; ] communications software for electronically exchanging sound, images, graphics, text, videos, data, and signals via computer, mobile, wireless, and telecommunications networks; computer software for processing images, graphics, sounds, videos, texts, and signals [ ; fire extinguishing systems and sprinkler systems for fire protection ]