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| Patents for Nathan K. Ellsworth | |||||
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| Number | Date | Patentee | Title | Type | |
| 147,113 | Feb. 03, 1874 | N.K. Ellsworth | Tools | combination tools | |
| 150,117 | Apr. 21, 1874 | T.B. Weston | Improvement in Box-Scrapers | box scrapers | |