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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.
electrical apparatus for use with musical instruments, namely, guitar, bass, keyboard and musical instrument amplifiers, extension speaker cabinets, speaker cabinets, loudspeakers, reverberation units, echo chambers and parts, components and accessories therefor, namely, amplifier tubes, amplifier carriers, amplifier cords, amplifier corners, amplifier covers, amplifier handles, amplifier knobs, amplifier legs, amplifier tube shields, amplifier volume and tone controls, amplifier foot pedal controls and amplifier switches