Drilldown: Patents

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Patents > Grant date: 1909 & Number of figures: 17-40

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Airplane (8) · stability (5) · frame (5) · Construction (4) · design (4) · propeller (3) · propulsion (3) · ascension (3) · lift (3) · aerodynamics (3) · whole (3) · wings (3) · navigation (3) · subsystem (2) · helicopter (2) · marine (2) · control (2)
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