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Patents > Grant date: March 1911 & Granted: Yes & Family year: 1900 - 1909

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Airplane (13) · frame (10) · rudder (8) · navigation (6) · stability (6) · None (5) · design (5) · propulsion (5) · wheels (4) · propeller (4) · whole (3) · Automatic stability (3) · Subsystem (3) · car (3) · construction (3) · propellers (3)
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