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Patents for Draper Ruggles
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,836Oct. 22, 1840E.G. MatthewsMachine for hewing plow-beams, carriage-shafts, cross-bars, and other timbersmolders
1,993Feb. 23, 1841E.G. MatthewsManufacture of plowsplows
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