Feathering propeller
United States Patent 2280713

Inventors:
Eric, Martin
Elmer, Anderson John
Beebe, Murray C.
Publication Date:
04/21/1942
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Export Citation:
Assignee:
UNITED AIRCRAFT CORP
Primary Class:
Other Classes:
416/158, 416/50, 91/33, 92/30
International Classes:
B64C11/42; B64C11/00