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Helicopter rotor system
US 3,026,942 A
Filed
: 07/07/1959
Issued
: 03/27/1962
Est. Priority Date
: 07/07/1959
Status: Expired due to Term
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Current Assignee
Wesley L. Cresap
Original Assignee
Wesley L. Cresap
Inventors
Cresap, Wesley L.
Application Number
US03/825,587
Time in Patent Office
994 Days
Field of Search
US Class Current
416/114
CPC Class Codes
B64C 27/54
Mechanisms for controlling ...
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