Drilldown: Patents

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Patents > Year filed: 1910 - 1919 & Patent agent: None & Number of figures: 10-40

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stability (7) · wings (5) · frame (4) · airplane (4) · construction (4) · metal (4) · design (3) · structure (2) · spars (2) · propulsion (2) · propellers (2) · parachutes (2) · navigation (2) · aerodynamics (2) · gyroscope (2) · instrument (2) · control (2)
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