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| Patents for George L. McCahan | |||||
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| Number | Date | Patentee | Title | Type | |
| 84,937 | Dec. 15, 1868 | J.F. Cook | Improvement in head-blocks | sawmill headblocks | |
| 92,463 | Jul. 13, 1869 | G.L. McCahan | Improvement in sawmills | sawmill feed works | |
| 150,875 | May 12, 1874 | G.L. McCahan | Improvement in circular-saw mills | circular sawmills | |
| 162,401 | Apr. 20, 1875 | G.L. McCahan | Steam Engine Governor | steam engine governors | |