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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.
signal generators; telephone transmission line testers; asymmetric digital subscriber line (adsl) testers, namely, telephone transmission line testers; programmable power supplies; function generators for testing logic circuits, linear amplifiers, wireless communication systems and electronic experimental circuits for teaching; power harmonic analyzers for testing the power consumption of an appliance, the efficiency of an appliance and the quality of a power system; rectifiers; inverters; silicon wafers; photovoltaic cells; photovoltaic modules; photovoltaic power systems comprising photovoltaic modules, mono-crystalline silicon solar cells, multi-crystalline silicon solar cells, inverters, grid-connected sine wave inverters