Drilldown: Patents

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Patents > Family year: 1900 - 1909 & Citations from after 1930: None & Number of claims: 15-18

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airplane (11) · frame (7) · propellers (7) · propulsion (7) · Design (6) · stability (6) · marine (5) · hybrid (5) · Whole (5) · Lift (4) · propeller (4) · safety (3) · control (3) · bamboo (3) · Automatic stability (3) · petroleum (3) · gyroscope (3) · navigation (3) · Aerodynamics (3)
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