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| Patents for J. Nelson Jacobs | |||||
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| Number | Date | Patentee | Title | Type | |
| 43,775 | Aug. 09, 1864 | J.N. Jacobs | Making Files | files | |
| 71,491 | Nov. 26, 1867 | J.N. Jacobs | Improved knife and scissors-sharpener | sharpening apparatus | |