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Patents > Year filed: 1911 & IPCs: IPC B64C1/00 & Number of text pages: 4-6000000

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stability (18) · Airplane (13) · automatic stability (8) · wings (4) · Subsystem (4) · control (4) · design (4) · gyroscope (4) · lift (3) · frame (2) · propellers (2) · pendulum (2) · landing (2) · incidence (2) · aerial navigation (2) · None (2) · equilibrium (2) · construction (2) · aileron (2) · balance (2)
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