Installations and apparatus for lighting, and parts thereof

Installations and apparatus for lighting and parts thereof

Parts for electronic apparatus and electronic equipment including parts for radio receivers and parts for television receivers

Vacuum or partial vacuum devices, and apparatus and instruments embodying such devices, all included in this class; particularly discharge tubes in general, cathode-ray tubes, vacuum tubes or valves, radio and television receiving tubes or valves, radio and television transmitting tubes or valves, electric lamps. Semi-conductor devices including diodes and transistors, and parts thereof all being goods included in this class; apparatus and instruments embodying semi-conductor devices all being goods included in this class,