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Patents > Year granted: 1909 & CPCs: CPC B64C17/00 & Family year: 1900 - 1999

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stability (19) · airplane (15) · control (12) · Subsystem (10) · automatic stability (10) · None (8) · design (7) · equilibrium (7) · Steering (6) · sustentation (4) · Rudder (4) · frame (4) · wings (4) · pendulum (3) · lift (3) · balance (3)
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