Drilldown: Patents

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Patents > Year granted: 1913 & Family year: 1909 & Citations from after 1930: None

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Airplane (14) · stability (8) · Propulsion (7) · subsystem (6) · frame (6) · wings (5) · design (5) · automatic stability (5) · Propellers (5) · Whole (4) · propeller (4) · None (4) · cardan (4) · construction (3) · Aerodynamics (3) · marine (3) · gyroscope (3)
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