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Patents Granted on 1833-03-30
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,501XMar. 30, 1833S. Couillard, Jr.Clearing wool of burstextile machines
7,502XMar. 30, 1833S. SawyerGuiding endless belts, bands, or aprons
7,503XMar. 30, 1833S. SawyerGinning and cleaning cottoncotton gins
7,504XMar. 30, 1833S. SawyerGinning and cleaning cotton by a combination of rollscotton gins
7,505XMar. 30, 1833S. SawyerRolls combining with a connecting belt, whereby fleece or skin wool may be strained over a surface that burs, etc. may be knocked offspinner
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