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All Patents in class 57/320
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
44,283Sep. 20, 1864E.C. ClevelandImprovement in spinning-machines
105,812Jul. 26, 1870P.J. Kent, N.W. BancroftImprovement in self-acting mules for spinning
147,590Feb. 17, 1874N.W. BancroftImprovement in self-acting spinning-mules
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