Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Patent agent : Armengaud jeune or Haseltine, Lake & Co.

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LTA (7) · navigation (5) · propulsion (5) · airfoil (3) · possibly “flapping” (3) · propeller (3) · compass (2) · instrument (2) · frame (2) · electricity (2) · dirigible (2) · cybernetics (2) · rigid (2) · rudder (2) · sail (2) · stability (2) · balloon (2) · aluminum (2) · airplane (2) · aerostat (2)
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