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Patents for Henry C. Butler
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
41,403Jan. 26, 1864N.C. StilesImproved Punching-Pressmetal punching machines
148,032Mar. 03, 1874H.C. ButlerImprovement in gang-saw hangersreciprocating sawmills
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