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| Patents for Ruth M. W. Koger | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,172,336 | Feb. 22, 1916 | N.H. Anderson | Tapping-machine | tapping machines | |
| 1,269,493 | Jun. 11, 1918 | O. Newlander | Gear Cutting Machine | gear making machines | |