Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Number of claims: 7-9 & Number of figures: 11-50

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propulsion (14) · airplane (12) · Design (11) · Propellers (9) · frame (7) · Construction (7) · stability (7) · whole (5) · flapping (5) · Aerodynamics (4) · wings (4) · HTA (4) · lift (3) · propeller (3) · Airship (3)
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