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| Patents for Charles H. Kettenring | |||||
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| Number | Date | Patentee | Title | Type | |
| 567,085 | Sep. 01, 1896 | G.A. Ensign | Planing-machine | wheelwright | |
| 647,384 | Apr. 10, 1900 | G.A. Ensign | Hub-turning lathe | wheelwright | |