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| Patents for O. J. Smith | |||||
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| Number | Date | Patentee | Title | Type | |
| 29,845 | Aug. 28, 1860 | J.W. Truax | Head-block for sawmills | sawmill headblocks | |
| 102,058 | Apr. 19, 1870 | O.J. Smith | Wrench | quick adjust wrenches | |