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| Patents for J. U. Zust | |||||
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| Number | Date | Patentee | Title | Type | |
| 97,801 | Dec. 14, 1869 | A. Perin | Improvement in sawmills | band resaws | |
| 100,944 | Mar. 15, 1870 | S. Sorrel | Material for making grinding wheels | ||
| 100,945 | Mar. 15, 1870 | S. Sorrel | Material for making grinding wheels | ||
| 101,034 | Mar. 22, 1870 | A. Perin | Improvement in saw-mills | band sawmills | |