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| Patents for S. R. Townsend | |||||
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| Number | Date | Patentee | Title | Type | |
| 37,340 | Jan. 06, 1863 | W.H. Field | Improvement in machines for making shoe-nails | ||
| 38,665 | May 26, 1863 | W.H. Field | Improvement in nail-machines | ||