Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 552
Jointing filaments on to supports of Brimsdown lamp … Joining lamp bulbs on to the cage. 538 THE ILLUMINATING ENGINEER BRITISH-MADE HALF-WATT LAMPS. In our last issue we referred to theinteresting fad that the British J homson-jton Company are actually manufac-turing half-watt lampe at Rugby. \\ • ■take this opportunity of Lri\iir_ a fewadditional…
Lighting
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