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| Patents for James R. Logan | |||||
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| Number | Date | Patentee | Title | Type | |
| 51,601 | Dec. 19, 1865 | J.R. Logan | Improvement in sawing-machines | drag saws | |
| 66,602 | Jul. 09, 1867 | J.R. Logan | Improvement in sawing machines | tree felling machines | |
| 78,298 | May 26, 1868 | J.R. Logan | Improvement in sawing machines | firewood machines | |