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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.
audio equipment, namely, microphone preamplifiers, power amplifiers, headphone amplifiers, turntable preamplifiers, headphone preamplifiers, musical instrument preamplifiers, analog to digital converter processors and interfaces for computers and digital and analog recording apparatus, digital to analog converter processors and interfaces for computers and digital and analog recording apparatus, usb headphone amplifiers and preamplifiers, usb stereo audio receivers, audio receivers to send analog signals to audio systems using short-range radio technology, audio receivers to send digital signals to audio systems using short-range radio technology, digital audio signal switch boxes, studio monitor speaker switchers, equalizers, noise gates, limiters, audio signal processor duckers, compressors, optical compressors, voice processors, dynamic processors, analog and digital signal and effects processors, audio room emulators, speaker cabinet simulators, direct signal boxes, audio signal switch boxes, and instruction manuals, sold as a unit