Improvements in design of engines and planes in United States.
Development of military airplanes
Aviation
Aviation ; 30 , n 1
1931
3 pages
3 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1928
|Engineering Index Backfile | 1937
Engineering Index Backfile | 1929
Engineering Index Backfile | 1933
|Engineering Index Backfile | 1920