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Patents Granted on 1820-05-03
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
FX-3,200May 03, 1820N. WinslowCooking stovestoves
3,200XMay 03, 1820J. Butters, E. HowardMachine for splitting leathersplitting and shearing machinery
3,201XMay 03, 1820I.L. SkinnerMachine for excavating canals
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