… and glass parts thereof, without fittings, for electric lamps and light sources, cathode-ray tubes or the like. …
Explanatory notes
… and glass parts thereof, without fittings, for electric lamps and light sources, cathode-ray tubes or the like. … or size, without fittings , for the manufacture of electric lamps, valves and tubes, whether these are for illuminating … By means of a series of operations (including, insertion of filaments or electrodes, exhaustion of the envelope, …