Drilldown: Patents

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Patents > Filing date: December 1909 & Family year: 1909 & Number of diagram pages: 2-7

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John Washington Wilson (4) · None (2)
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None (11) · frame (10) · propeller (8) · airplane (8) · design (7) · wheels (7) · navigation (6) · propellers (5) · Wings (5) · stability (4) · rudder (4) · takeoff (4) · Flapping (4) · Whole (3) · construction (3) · balance (3) · Aerodynamics (3) · human-powered (3)
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