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| Patents for Erastus S. Root | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,665X | May 17, 1836 | E.S. Root | Horse rake | hay or straw rakes | |
| 834,438 | Oct. 30, 1906 | D.M. Wright | Power-transmission mechanism | drill presses | |