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COMPOUND HELICOPTER
US 3,448,946 A
Filed
: 05/04/1967
Issued
: 06/10/1969
Est. Priority Date
: 09/16/1966
Status: Expired due to Term
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26 Citations
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Current Assignee
Nagatsu Teisuke
Original Assignee
Nagatsu Teisuke
Inventors
NAGATSU TEISUKE
Application Number
US04/636,160
Time in Patent Office
768 Days
Field of Search
US Class Current
244/17.19
CPC Class Codes
B64C 27/12
Rotor drives
B64C 27/14
Direct drive between power ...
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