CPC B63B3/40
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CPC B63B3/40 is a patent class for xyz.[1][2]
References
This wiki has 3 patents in category "CPC B63B3/40".
Patents in category CPC B63B3/40
- Patent FR-1910-422138 (English title: Anti-propeller for water and air vehicles, which features blades radially curved in opposition to those of the principle propeller or propellers, Inventors: Rudolf Wagner, Supplementary to patent: Patent FR-1909-12-09 Rudolf Wagner, Filing date: 1910-09-28)
- Patent GB-1910-29268 (English title: Improvements in or connected with the Propulsion of Sailing and other Vessels, Inventors: John William Caton • Alfred Abram Caton, Filing date: 1910-12-16)
- Patent FR-1912-445411 (English title: Counter-propeller of reversibles wings or paddles, Inventors: Rudolf Wagner, Supplementary to patent: Patent DE-1912-06-08, Filing date: 1912-06-25)
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