Drilldown: Patents

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Patents > Grant date: March 1913 & Number of text pages: 2-9 & Number of diagram pages: 1-2

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None (12) · airplane (10) · Design (5) · construction (4) · propellers (4) · frame (4) · subsystem (3) · stability (3) · navigation (3) · lift (3) · landing (3) · wings (3) · airfoil (3) · safety (2) · whole (2) · marine (2) · takeoff (2) · sustentation (2) · rudder (2)
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