Amplifiers; Batteries, electric; Electric wires and cables; Electrolysers; Electronic chips for the manufacture of integrated circuits; Fluorescent screens; Integrated circuit cards and components; Integrated circuits; Inverters; Light conducting filaments; Optical lamps; Plates for batteries; Remote control telemetering machines and apparatus; Semi-conductors; Silicon chips; Silicon wafers; Solar panels for production of electricity; Transistors; Wafers for integrated circuits; Solar batteries