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All Patents in class 417/404 | |||||
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Number | Date | Patentee | Title | Type | |
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 | steam pumps | |
27,426 | Mar. 13, 1860 | A. Brown, F. Brown | Steam-pump | steam pumps | |
113,725 | Apr. 18, 1871 | W. Baxter, Jr. | Steam Pump | steam pumps | |
138,622 | May 06, 1873 | R. Eickemeyer | Improvement in steam-pumps | steam pumps | |
263,694 | Sep. 05, 1882 | H.F. Gaskill | Pumping engine | steam pumps | |
766,237 | Aug. 02, 1904 | H.F. Frisbie | Direct Acting Pump | steam pumps |