Drilldown: Patents

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Patents > Grant date: 1800 - 1899 & CPCs : CPC B64C11/006 or CPC B64C11/48

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None (172) · William R. Manley (2)
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None (174) · marine (15) · propeller (13) · paddle-wheel (13) · propulsion (9) · churn (6) · windmill (5) · marine propeller (4) · paddle wheels (3) · marine propulsion (3) · churns (2) · propellers (2) · blades (2) · paddle-wheels (2) · paddle wheel (2) · navigation (2) · flapping (2)
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