Drilldown: Patents

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Patents > Patent agent : Armengaud jeune or Haseltine, Lake & Co. or Victor J. Evans or None & National tech categories : FR 6.3 or GB 4 propel & steer & Family year: 1890 - 1899 & First filing: None

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propulsion (13) · LTA (8) · Navigation (5) · propeller (4) · Airplane (4) · balloon (4) · frame (3) · wheels (2) · heavier-than-air (2) · car (2) · safety (2) · subsystem (2) · marine (2)
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Showing below up to 37 results in range #1 to #37.

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