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Patents > Filing date: 1908 & IPCs: None & Number of diagram pages: 4-20

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Frame (12) · Airplane (10) · propulsion (8) · navigation (8) · None (8) · Stability (5) · control (5) · propeller (5) · airfoil (5) · wheels (4) · Whole (4) · Propellers (4) · takeoff (3) · landing (3) · parachute (3) · marine (3) · rudder (3) · Wings (3)
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