Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Related to aircraft: 1 & Number of figures: 10-14

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Airplane (8) · None (4) · LTA (4) · stability (4) · steering (3) · rudder (3) · navigation (3) · wings (3) · helicopter (2) · aerodynamics (2) · kite (2) · propellers (2) · gas (2) · metal (2) · frame (2) · design (2) · control (2) · chassis (2) · balloon (2)
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