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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.
electric resistances for lightning arresters, rheostats and wireless apparatuses, rectifier anodes, valves for wireless transmitters or receivers, wireless apparatuses and their component parts. electric cells and their components, battery cells, electric accumulators and their components, storage batteries; carbons for all electrical, technical, electro-technical and mechanical uses, such as conglomerated carbons for microphone applications, electrolysis and electric cells; carbons for use as catalysts; carbons for projectors, cinematographic lamps and all types of industrial and medical arc lamps; carbons for electrical welding and photogravure,