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| Patents for Oscar C. Ferris | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 111,859 | Feb. 14, 1871 | F.B. Miles | Turning Lathe | |
 | 142,493 | Sep. 02, 1873 | F.B. Miles | Planing Machines | |
 | 142,694 | Sep. 09, 1873 | F.E. Hahn | Improvement in boring-mills | |
| 146,064 | Dec. 30, 1873 | F.E. Hahn | Work Holding Devices | ||
| 185,121 | Dec. 05, 1876 | F.B. Miles | Journals and Bearings | ||