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| Patents for Nelson B. Keyes | |||||
| Number | Date | Patentee | Title | Type | |
| 438,848 | Oct. 21, 1890 | N.B. Keyes | Sheet-Metal Pliers | pliers | |
| 672,654 | Apr. 23, 1901 | N.B. Keyes, W.F. Hobbs, E.N. Sperry | Pliers | pliers | |