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Patents > Filing date: 1911 & Grant date: October 1912

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None (11) · airplane (8) · stability (5) · control (4) · subsystem (4) · design (4) · wings (4) · propulsion (3) · propellers (3) · lift (2) · gyroscope (2) · sustentation (2) · Landing (2) · navigation (2) · automatic stability (2) · flapping (2)
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Showing below up to 36 results in range #1 to #36.

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