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Patents Granted on 1820-06-??
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,206XJun. 02, 1820E.S. CurtisImprovement on the white wash brush
3,207XJun. 05, 1820J. HatchMachine for making watch chainschain making machines
3,208XJun. 15, 1820A. WoolworthMachine for turning gunstocksgunsmith
3,209XJun. 17, 1820L.S. ParmlyComposition for cleansing and preserving teeth
3,210XJun. 17, 1820D. CoitImprovement on his Family pills
3,211XJun. 24, 1820A. BaileyFloating wharfs for catching fish
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