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| Patents for Nathan L. Perkins | |||||
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| Number | Date | Patentee | Title | Type | |
| 68,878 | Sep. 17, 1867 | J.A. Howe | Improvement in Cant Hooks | lumberjack | |
| 91,853 | Jun. 29, 1869 | W.P. Kilgore | Improvement in Cant Hook | lumberjack | |