9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
microphone stands, multiple microphone connectors, headphones, carry cases for microphones, interconnection boxes for multiple headphones, listening centers consisting of multiple headphones, together with headphone tote boxes having built-in jack boxes, volume level meters, and audio monitors, cassette and reel-to-reel tape recorders and tape decks, record player decks