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Rotor blade
US 3,013,614 A
Filed
: 03/14/1956
Issued
: 12/19/1961
Est. Priority Date
: 03/14/1956
Status: Expired due to Term
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13
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13 Citations
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Current Assignee
Haviland H. Platt
Original Assignee
Haviland H. Platt
Inventors
Platt, Haviland H.
Application Number
US03/571,506
Time in Patent Office
2,106 Days
Field of Search
US Class Current
416/225
CPC Class Codes
B64C 27/473
Constructional features
Y10T 29/49339
Hollow blade
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