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| Patents for Nathaniel E. Smith | |||||
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| Number | Date | Patentee | Title | Type | |
| 514,166 | Feb. 06, 1894 | N.E. Smith | Combined Pipe Wrench and Cutter | wrench combination tools | |
| 575,381 | Jan. 19, 1897 | N.E. Smith | Compound Metal Working Tool | wrench combination tools | |
| 1,121,303 | Dec. 15, 1914 | N.E. Smith | Angle Scale Attachment for Folding Rules | rule attachments | |