Drilldown: Patents

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Patents > Grant date: May 1919 & Publication date: 1900 - 1999 & Number of claims: 1-2

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airplane (8) · military (3) · construction (3) · Propellers (3) · biplane (3) · Aerodynamics (2) · frame (2) · stability (2) · motors (2) · Control (2) · design (2)
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