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Artificial lighting of future will make available health-giving ultra-violet rays in connection with general illumination; characteristics of ultra-violet producing lamps; latest stages in ultra-violet development.
Artificial lighting of future will make available health-giving ultra-violet rays in connection with general illumination; characteristics of ultra-violet producing lamps; latest stages in ultra-violet development.
Simulating sunlight
Nat. Safety News
Porter, L.C. (Autor:in)
National Safety News ; 24
1931
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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