Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Patent agent: C. Blétry & Number of diagram pages: 0-50000000

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design (7) · Airplane (7) · wings (6) · LTA (3) · balloon (3) · control (3) · propulsion (3) · propellers (3) · marine (3) · traction (2) · submarine (2) · stability (2) · orthopter (2) · lift (2) · flapping (2) · dirigible (2) · Frame (2) · Construction (2)
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