Drilldown: Patents

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Patents > Year filed: 1912 & Patent agent : Duvinage (French patent agent) or Marks & Clerk

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Airplane (6) · stability (5) · LTA (5) · balloon (4) · wings (3) · frame (3) · fabric (3) · control (2) · steering (2) · propellers (2) · landing gear (2) · fuselage (2) · design (2) · None (2) · chassis (2) · car (2) · automatic stability (2)
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