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| Patents for J. U. Zust | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 97,801 | Dec. 14, 1869 | A. Perin | Improvement in sawmills | |
| 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 | |
| 107,194 | Sep. 06, 1870 | H.U. Petin | Improvement in machines for rolling tires | ||