HAND HELD PROPULSION UNIT
United States Patent 3441952

Inventors:
Strader, John Gary
Publication Date:
04/29/1969
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Assignee:
John, Gary Strader
Primary Class:
440/6
Other Classes:
440/71
International Classes:
A63B35/12; A63B35/00; B63C11/00; B63H1/14
Foreign References:
NO92265A




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