Drilldown: Patents

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Patents > Grant date: December 1913 & Number of figures: 1-3

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Airplane (13) · Design (5) · propellers (5) · Stability (5) · Propulsion (4) · Aerodynamics (4) · frame (3) · motors (3) · landing (3) · Construction (3) · Fuselage (3) · None (3)
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