A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Illumination by light projectors at coal mines
Need for greater application of advanced principles in correct illumination; hazards of poor lighting; function of reflector; focusing headlight.
Illumination by light projectors at coal mines
Need for greater application of advanced principles in correct illumination; hazards of poor lighting; function of reflector; focusing headlight.
Illumination by light projectors at coal mines
Coal Age
Coal Age ; 24
1923
4 pages
11 Figs.
Article (Journal)
English
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