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| Patents for Daniel M. Demmon | |||||
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| Number | Date | Patentee | Title | Type | |
| 61,493 | Jan. 22, 1867 | T.J. Wells | Improved peat car | peat bog apparatus | |
| 63,342 | Mar. 26, 1867 | T.J. Wells | Improved peat machine | peat bog apparatus | |