The sperry "messenger" biplane
Flight
Flight ; 13 , n 7, 634
1921
3 pages
5 Figs.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1920
Engineering Index Backfile | 1938
The air forces on a model of the sperry messenger airplane without propeller
Engineering Index Backfile | 1925
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