Drilldown: Patents

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Patents > Filing date: 1909 & Number of claims: 10-60 & Number of figures: 9-15

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Airplane (13) · stability (8) · rudder (7) · None (6) · propeller (5) · frame (5) · design (4) · propulsion (4) · lift (4) · hybrid (4) · marine (3) · hydroplane (3) · safety (3) · propellers (3) · navigation (3)
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