Drilldown: Patents

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Patents > Supplementary to patent: None & Related to aircraft : 1852-08-14 or Yes & National tech categories : USPC 416/116 or None & CPCs : CPC B64C11/006 or CPC B64C2700/6256 or CPC B64C33/02

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None (16)
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None (28) · propulsion (10) · propeller (5) · propellers (5) · wings (4) · airplane (4) · flapping (4) · steering (3) · marine (3) · lift (2) · frame (2) · ornithopter (2) · control (2) · aileron (2) · aeroplane (2) · aerodynamics (2)
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