Drilldown: Patents

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Patents > Grant date: 1840 - 1849 & Assigned to: None & Family year: 1800 - 1899

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navigation (15) · LTA (15) · marine (10) · propellers (8) · submarine (7) · propulsion (4) · None (4) · balloon (3) · dirigible (2) · aerostat (2)
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Showing below up to 38 results in range #1 to #38.

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