Drilldown: Patents

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Patents > Filing date: 1800 - 1899 & Family year: 1840 - 1849 & Number of text pages: None

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LTA (23) · navigation (16) · propulsion (12) · marine (10) · balloon (8) · propellers (8) · submarine (7) · propeller (4) · whole (3) · wheels (3) · passenger (3) · dirigible (3) · frame (3) · cargo (3)
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