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| All Patents in class 92/71 | |||||
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| Number | Date | Patentee | Title | Type | |
| 42,336 | Apr. 19, 1864 | E.D. Ashe | Propeller Engine | rotary steam engines | |
| 2,022,917 | Dec. 03, 1935 | T.L. Sherman, E.T. Larkin | Bearing | industrial machine bearings | |
| 2,138,194 | Nov. 29, 1938 | E.M. Pfauser | Hydraulic Pump | hydraulic pumps | |
| 2,170,058 | Aug. 22, 1939 | E.T. Larkin | Internal Combustion Engine | internal combustion engines | |