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| Patents for John F. Nelson | |||||
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| Number | Date | Patentee | Title | Type | |
| 523,020 | Jul. 17, 1894 | C. Tinglof | Wrench | screw adjust wrenches | |
| 550,698 | Dec. 03, 1895 | C. Tinglof | Wrench | screw adjust wrenches | |