Drilldown: Patents

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Patents > Year granted: 1920 & Number of text pages: 1-3 & Number of figures: 6-7

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construction (10) · airplane (7) · propellers (6) · frame (6) · design (5) · Wings (4) · Aerodynamics (3) · Ascension (3) · fuselage (3) · Propulsion (2) · triplane (2) · braking (2) · Cables (2) · Landing gear (2) · whole (2) · control (2) · descent (2) · motors (2)
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