GRAND SLAVE

Commutators; High frequency switches; Light emitting diodes (LEDs); Semi-conductors; Apparatus that employs light concentrating optics to concentrate sunlight and to aid in the conversion of sunlight into electric and thermal energy; Integrated circuits; Photovoltaic cells; Remote control telemetering machines and apparatus; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids