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| All Patents in class 417/118 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,834X | May 22, 1835 | P.C. Curtis | Pump | pumps | |
| 42,213 | Apr. 05, 1864 | J. Molyneux | Improvement in apparatus for forcing oil from wells | oil well pumps | |
| RE1,789 | Oct. 04, 1864 | J. Molyneux | Apparatus for forcing oil from oil wells | oil well pumps | |
| 587,290 | Jul. 27, 1897 | E.P. Holly | Water Return System for Steam Generators | ||
| 587,291 | Jul. 27, 1897 | E.P. Holly | Water Return System for Steam Generators | ||