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All Patents of Type: center punches
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
49,553Aug. 22, 1865E.E. Safford, S. SawyerImproved Adjustable Center-Punchcenter punches
50,442Oct. 17, 1865M. BowkerCenter-Punchcenter punches
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