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| All Patents in class 417/548 | |||||
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| Number | Date | Patentee | Title | Type | |
| 306,679 | Oct. 14, 1884 | J.W. Douglas | Pump | household hand pumps | |
| 371,518 | Oct. 11, 1887 | C.H. Betts, A. Potter | Double-acting force-pump | ||