Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 147
es as dyeing, paint and Fig. 1. —B.T.-H. TrutintUnit for pendant use, show-ing special daylight glassscreen detached from re-flector. and commercial establishments, and issupplied in three sizes for 100, 200 and500 watt Mazda gas-filled lamps. Theother unit is made in one size only, for100 watt…
Lighting
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