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Patents > Filing date: 1911 & IPCs : IPC B64B1/40 or IPC B64C17/06

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stability (16) · gyroscope (9) · airplane (8) · LTA (7) · steering (4) · automatic stability (4) · subsystem (3) · control (3) · Design (3) · pendulum (3) · equilibrium (2) · rudder (2) · landing (2) · navigation (2) · propellers (2) · frame (2) · balance (2) · balloons (2)
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