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Helicopter rotor control
US 2,517,509 A
Filed
: 05/09/1945
Issued
: 08/01/1950
Est. Priority Date
: 05/09/1945
Status: Expired due to Term
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14 Citations
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Current Assignee
Igor I. Sikorsky
Original Assignee
Igor I. Sikorsky
Inventors
Sikorsky, Igor I.
Application Number
US02/592,862
Time in Patent Office
1,910 Days
Field of Search
US Class Current
244/17.11
CPC Class Codes
B64C 1/00
Fuselages; Constructional f...
B64C 2025/325
specially adapted for helic...
B64C 25/54
Floats
B64C 27/12
Rotor drives
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