Drilldown: Patents

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Patents > Year granted: 1885 & Family year: 1880 - 1889

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None (35) · LTA (10) · navigation (8) · rudder (5) · propulsion (5) · propeller (5) · balloon (3) · airfoil (3) · frame (3) · flapping (2) · safety (2) · ornithopter (2) · military (2) · whole (2) · car (2)
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