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Patents > IPCs: IPC B64C39/00 & Family year: 1910 & Number of claims: 2-4

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airplane (9) · wings (7) · design (7) · sustentation (6) · propellers (5) · aerodynamics (5) · lift (5) · stability (4) · None (4) · control (4) · propulsion (3) · rudder (3) · construction (2) · whole (2) · frame (2) · ascension (2) · ornithopter (2)
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Showing below up to 23 results in range #1 to #23.

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