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Patents for Jonathan Yerkes
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
62,105Feb. 12, 1867J. YerkesImprovement in Making Hammershammers
142,070Aug. 19, 1873J. YerkesImprovement in the Manufacture of Hammershammers
150,385Apr. 28, 1874J. YerkesImprovement in wedges for tool-handleshammers
183,096Oct. 10, 1876J. YerkesImprovement in the Manufacture of Adz-Eye Hammershammers
235,326Dec. 07, 1880J. YerkesManufacture of Hammers and Hatchetshammers
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