Drilldown: Patents

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Patents > Year granted: 1921 & Filing date: 1910 - 1919 & Number of figures: 8-40

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airplane (8) · stability (5) · design (5) · None (4) · wings (4) · aerodynamics (4) · HTA (3) · heavier-than-air (3) · subsystem (2) · rudder (2) · gyroscope (2) · propellers (2) · control (2) · construction (2) · chassis (2) · lift (2) · Biplane (2) · hydroaeroplane (2)
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