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Apparatus and method for moving loads with combination helicopter and balloon
US 3,017,138 A
Filed
: 03/05/1958
Issued
: 01/16/1962
Est. Priority Date
: 03/05/1958
Status: Expired due to Term
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Current Assignee
Knute W. Flint
Original Assignee
Knute W. Flint
Inventors
Flint, Knute W.
Application Number
US03/719,230
Time in Patent Office
1,413 Days
Field of Search
US Class Current
244/3
CPC Class Codes
B64B 1/40
Balloons B64B1/58 takes pre...
B64C 27/04
Helicopters
B64C 37/02
Flying units formed by sepa...
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