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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 machinery for measuring, controlling, manufacturing, neutralizing and preventing the accumulation of static electricity, namely, static eliminators, static charge monitors, electrostatic meters, constant current/constant voltage high voltage power supply amplifier, high voltage power supply amplifier controller, ac+10kv power supply, reference supply pulse apparatus electrostatic field meters, multi-channel elctrostatic field meters, monitor/alarms, static charge analyzer, ion balance monitor, static electricity detector/monitor, charged body detector, filters, flux recovery units, analyzers, sensors, precision resistor measuring instruments and static chargers