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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.
computer controlled audio-video and digital signal processing equipment, namely, computers, audio, video and control processing circuit boards, breakout interface iot (internet of things) boxes the nature of electrical and/or electronic equipment for processing transmitting, distribution, receiving, amplification and control of audio-video digital signals and network streams for input-output connection, audio mixers, audio equalizers, dynamic processors in the nature of digital audio processors, visual display and control signal generators, delay lines, namely, electronic components for delaying and/or synchronizing the output of an input signal, distribution amplifiers, audio crossovers, audio signal filters, automatic audio mixers, audio speakers, signal processors and meters