Drilldown: Patents

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Patents > Patent agent: None & Family year: 1912 & Number of figures: 8-17

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airplane (10) · stability (7) · None (6) · automatic stability (4) · construction (4) · Frame (3) · Flapping (3) · design (3) · Wings (3) · Airship (3) · hydroplane (2) · fuselage (2) · monoplane (2) · control (2) · propulsion (2) · marine (2) · helicopter (2)
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