Drilldown: Patents

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Patents > National tech categories: None & Family year: 1800 - 1899 & Number of diagram pages: 2

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propeller (10) · propulsion (8) · None (5) · LTA (5) · rudder (4) · marine (4) · stability (3) · paddle-wheel (3) · balloon (3) · marine propulsion (3) · Design (3) · frame (3)
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Showing below up to 36 results in range #1 to #36.

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