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Patents Granted on 1832-08-02
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,191XAug. 02, 1832W. HowardSwitches or turn-outs for railways
7,192XAug. 02, 1832C.C. KnowlesChurnchurns
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