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Patents Granted on 1848-07-11
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
5,661Jul. 11, 1848A. SwingleBoring and mortising machinemortising machines
5,666Jul. 11, 1848T.C. MerrillMachinery for sawing irregular shapes
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