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All Patents in class 72/192
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
224,720Feb. 17, 1880G. ParrMachine for Rolling Chiselsmaking chisels
293,292Feb. 12, 1884E.O. WilliamsDrill Making Machinemaking drills and augers
303,350Aug. 12, 1884P.A. WhitneyRiveting Machineriveting machines
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