Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Inventor country: FR & Patent agent: None & National tech categories : AT 77d or FR 6.3 or FR 6.4 or USPC 244/80 & IPCs : IPC B64C35/00 or IPC B64C39/00

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Design (9) · propulsion (9) · airplane (8) · Construction (6) · Frame (4) · Propellers (4) · ascension (4) · Landing (4) · navigation (3) · parachute (3) · Wings (3) · safety (3) · airship (3)
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