Sustaining and propelling member for fluid-sustained craft
United States Patent 2169325

Inventors:
Novak, Julius J.
Publication Date:
08/15/1939
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Assignee:
Novak, Julius J.
Primary Class:
244/198
Other Classes:
415/914, 416/231R, 416/231B
International Classes:
B64C21/06; B64C21/00