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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 couplings, electric arc welders, electric welding apparatus, namely, welding torches, welding electrodes and welding brazers, power distribution control machines and apparatus, namely, power distribution blocks, switchboards, hybrid integrated circuits, rotary converters, electric phase modifiers, batteries and electric cells, magnetic cores, electrodes; electronic publications, namely, books, magazines and manuals featuring power transmission equipment, all recorded on electronic media