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Patents Granted on 1863-04-07
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
38,119Apr. 07, 1863S.A. MorseTwist drill bittwist drill bits
38,135Apr. 07, 1863J.S. Shattuck, D. ShattuckImproved machine for cutting raspsmaking files
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