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1788218
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Information
Patent Grant
1788218
References
Source
Patent Number
1,788,218
Date Filed
Not available
Date Issued
Tuesday, January 6, 1931
93 years ago
CPC
B64C27/12 - Rotor drives
B64C2700/6288 - Hydraulic, electric or man powered rotorcrafts
US Classifications
244 - Aeronautics and astronautics
416 - Fluid reaction surfaces
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