Consideration of how much light is permissible when it cannot be completely blacked out and how best to produce it; problems involved are: manufacturing plants, street lighting, traffic signals, warning beacons, automotive transportation, railroad transportation, groups of buildings, advertising signs, water transportation, etc. (see also Gen Elec Rev v 45 n 12 Dec 1942 p 674-84)
Blackout lighting
Am Soc Naval Engrs -- J
1943
13 pages
10 Supp plates, Bibliography
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1942
|IuD Bahn | 1996
|Online Contents | 2017
|Engineering Index Backfile | 1943
|WINDSHIELD BLACKOUT WITH VIEWING WINDOW AND BLACKOUT WINDOW FEATURE
Europäisches Patentamt | 2019
|