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Patents Granted on 1822-06-15
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,535XJun. 15, 1822F. Goucher (Goncher)Washing machinewashing machines
3,536XJun. 15, 1822H. BurdenFlax and hemp dressing machineflax and hemp machines
3,537XJun. 15, 1822B. Hayden, Jr.Churnchurns
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