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| All Patents in class 417/404 | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 6,274 | Apr. 03, 1849 | H.R. Worthington, W.H. Baker | Method of insuring the action of the valves in the direct-action pumping-engines | |
![]() | 27,426 | Mar. 13, 1860 | A. Brown, F. Brown | Steam-pump | |
| 113,725 | Apr. 18, 1871 | W. Baxter, Jr. | Steam Pump | ||
![]() | 138,622 | May 06, 1873 | R. Eickemeyer | Improvement in steam-pumps | |
| 263,694 | Sep. 05, 1882 | H.F. Gaskill | Pumping engine | ||
| 766,237 | Aug. 02, 1904 | H.F. Frisbie | Direct Acting Pump | ||