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Patents Granted on 1792-02-__
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
39XFeb. 23, 1792J. BaileySteam Jacksteam jacks
40XFeb. 24, 1792D. HartleyHardening and Tempering Steelblacksmith
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