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Patents Granted on 1862-05-13
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
RE1,309May 13, 1862H.D. SnowImprovement in Governor-Valvessteam engine governors
35,266May 13, 1862E. SmithImprovement in shingle machinesshingle machines
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