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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.
electronic switchers in the nature of digital signal processors for video signals; audio-visual systems and components, namely, audio microphone mixers, audio-visual system controllers, namely, controllers that power on and off, select audio-video sources for, and operate indirectly, electronic switchers in the nature of digital signal processors, systems comprising usb cables, [ hdmi ] * high-definition multimedia interface * cables, power cables, and computer peripheral devices, excluding cameras, video recorders, and webcams; audio-visual systems and components consisting of electronic controllers and computers which provide automated motion tracking that follows a moving presenter