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| Patents for Draper Ruggles | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,836 | Oct. 22, 1840 | E.G. Matthews | Machine for hewing plow-beams, carriage-shafts, cross-bars, and other timbers | molders | |
| 1,993 | Feb. 23, 1841 | E.G. Matthews | Manufacture of plows | plows | |