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Patents for Sarah L. Tompkins | |||||
Number | Date | Patentee | Title | Type | |
39,852 | Sep. 08, 1863 | W. Watts | Steam Pump | steam pumps | |
42,054 | Mar. 22, 1864 | W. Watts, F. Willcox, D.F. Tompkins | Improvement in spikes and nails |