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; and in particular electricity generating apparatus utilising solar power; photovoltaic panels; photovoltaic cells; solar cells; photocells; solar collectors for electricity generation; solar panels; checking, signalling apparatus; environmental engineering instruments; measuring instruments for gas testing for the regulation of methane, carbon dioxide, oxygen, ammonia, hydrogen; electric accumulators; solar batteries; galvanising equipment; galvanometers; collectors (electric); electric condensers; apparatus for converting radiation to electric energy; apparatus and equipment, electric and electronic systems for residential, commercial and industrial plants and installations, for the transmission and processing of sound, data, images; apparatus, equipment, electric and electronic systems for controlling, starting, regulating, monitoring, controlling, stopping electric, electromechanical, electric household apparatus, heating and air conditioning apparatus and installations; transformers; electric devices for energy transmission