Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 352
REET LIGHTING. 337 The diagram on the opposite page may be conveniently compared with Table I.,and shows the level of lamps customary in the Metropohs, including centrallysuspended, experimental and permanent systems, the heights and spacinghaving been decided upon according to the nature of the…
Lighting
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