Description, with discussion of their use. (1200 w.) (No. 54979)
Lighthouses for aerial navigation
Sci Am Sup
1914
Ills.
Aufsatz (Zeitschrift)
Englisch
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Powerful lighthouses in aerial navigation
Engineering Index Backfile | 1922
|Engineering Index Backfile | 1920
Engineering Index Backfile | 1922
Engineering Index Backfile | 1921
|Engineering Index Backfile | 1922