Individual propulsion
United States Patent 3149799
US Patent References:
Swimming device
- - 1586595

Propulsion unit
- - 3021095

Turbo-fan lift device
- - 3023980


Inventors:
Hulbert, John K.
Publication Date:
09/22/1964
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Assignee:
BELL AEROSPACE CORP
Primary Class:
244/4A
Other Classes:
60/227, 60/200.100, 60/230, 60/202, 60/264, 60/232
International Classes:
B64C39/02; B64C39/00