Drilldown: Patents

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Patents > IPCs: IPC B64C33/00 & Family year: 1900 - 1909 & Citations from after 1930: None

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flapping (19) · ornithopter (9) · propulsion (9) · airplane (8) · navigation (8) · wings (7) · frame (7) · stability (5) · design (4) · hybrid (4) · HTA (3) · control (2) · human-powered (2) · ascension (2) · sustentation (2) · rudder (2) · takeoff (2) · wheels (2) · airfoil (2) · propeller (2)
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Showing below up to 34 results in range #1 to #34.

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