Drilldown: Patents

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Patents > Grant date: 1900 - 1909 & IPCs : IPC B64C25/00 or IPC B64C33/00

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flapping (14) · airplane (8) · navigation (8) · ornithopter (7) · stability (7) · propulsion (7) · frame (7) · wings (7) · takeoff (7) · wheels (6) · landing (5) · LTA (3) · subsystem (3) · HTA (3) · hybrid (3) · airfoil (3)
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Showing below up to 35 results in range #1 to #35.

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