Drilldown: Patents

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Patents > Year filed: 1912 & Granted: Yes & Publication date: September 1912

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airplane (20) · design (13) · frame (7) · wings (5) · stability (5) · construction (4) · cables (4) · lift (3) · military (3) · landing (3) · aerodynamics (3) · Parachute (3) · fabric (3) · longerons (3) · airfoil (3) · sustentation (3)
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