Development of marine lights and lenses; principles of new powerful aerial lights, such as Barbier-Benard and Sautter-Harle-visibility of light; etc.
Powerful lighthouses in aerial navigation
Les phares a grande portee en navigation aerienne
Aeronautique ; 4 , n 34
1922
8 pages
7 Figs.
Aufsatz (Zeitschrift)
Französisch
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Lighthouses for aerial navigation
Engineering Index Backfile | 1914
Engineering Index Backfile | 1920
Engineering Index Backfile | 1922
Engineering Index Backfile | 1921
|Engineering Index Backfile | 1922