Drilldown: Patents

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Patents > Filing date: February 1913 & Family year: 1910 - 1919 & Number of claims: 4-110

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stability (10) · None (5) · airplane (5) · wings (3) · automatic stability (2) · frame (2) · propellers (2) · helicopter (2) · ascension (2) · subsystem (2) · control (2)
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