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Patents > Grant date: 1910 - 1919 & Related to aircraft: Yes & IPCs: IPC B64C33/02

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wings (13) · flapping (12) · Airplane (9) · Propulsion (6) · design (5) · navigation (5) · ornithopter (4) · hybrid (4) · frame (4) · Lift (3) · HTA (3) · heavier-than-air (3) · steering (3) · stability (3) · sustentation (3) · construction (3)
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Showing below up to 33 results in range #1 to #33.

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