Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Number of text pages: 2-3 & Number of figures: 9-14

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airplane (10) · wings (8) · design (6) · None (5) · construction (5) · frame (4) · metal (4) · aerodynamics (4) · subsystem (3) · propellers (3) · biplane (3) · piloting (2) · material (2) · propeller (2) · lift (2) · landing (2) · stays (2) · wheels (2) · chassis (2)
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