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Patents > Year granted: 1909 & IPCs : IPC B64C17/00 or IPC B64C3/52

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Airplane (21) · stability (16) · Control (14) · Subsystem (8) · automatic stability (7) · Design (6) · Steering (6) · Wings (5) · Frame (5) · equilibrium (5) · Aerodynamics (4) · Rudder (3) · balance (3) · Lift (3) · Sustentation (3) · wing warping (3)
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