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| Patents for Ira Ingersoll | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,170,830 | Feb. 08, 1916 | W.F. Groene, R.K. Blond | Variable-speed mechanism | milling machines | |
| 1,203,751 | Nov. 07, 1916 | W.F. Groene, R.K. Le Blond | Gearing | industrial machine gearing | |