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| All Patents in class 92/171.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 370,666 | Sep. 27, 1887 | D.L. Volker | Pump | steam pumps | |
| 978,673 | Dec. 13, 1910 | J.M. Stratton | Double-acting horizontal power-pump | ||
| 1,213,340 | Jan. 23, 1917 | F.M. Davis | Gas-engine | cylinders | |
| 1,768,799 | Jul. 01, 1930 | F.D. Stanley | Pump Cylinder | pump cylinders | |
| 2,045,024 | Jun. 23, 1936 | F.P. Thieman, H.J. Renken | Pump | piston pumps | |
| 2,403,427 | Jul. 02, 1946 | O.H. Ludeman | Valve Mechanism | steam valves | |