Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 24
(rf) … 00 TYPICAL MODERN CLUSTER-FITTINGS FORGENERAL LIGHTING. 14 THE ILLUMINATINC4 ENGINEER (jan. 1922) valuable in cases where it is desired toavoid possible dropping of hot parts fromthe mantle. I desire to emphasise theimportance of constant pressure in con-junction with incandescent gas lighting.This…
Lighting
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