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Patents Granted on 1831-10-07
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
6,789XOct. 07, 1831P. ChaseCoal, anthracite, high steam and hydrogen gas applied to produce combustionstationary boilers
6,790XOct. 07, 1831T. HinkleyCleaning chimneys
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