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All Patents in class 225/91
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
44,874Nov. 01, 1864R.F. McCoy, H.L. HerwigMetal Rulerrules
159,294Feb. 02, 1875T.H. Belcher, H. BelcherImprovement in Rulersrules
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