Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 454
Fig. 4.—Decorative IU)m in lamp in bronze. Fig. 7.—Priniitivc miners lamp. 440 THE ILLUMINATING ENGINEER. REVIEW OF THE TECHNICAL PRESS. ILLUMINATION AND PHOTOMETRY. The majority of contributions on illumin-ation and photometry this month haveappeared in German jDeriodicals. Quitea number of papers…
Lighting
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