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Patents for H. Knippenberg
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
154,000Aug. 11, 1874E.C. AtkinsImprovement in Saw-Handlescrosscut saw handles
156,967Nov. 17, 1874E.C. AtkinsImprovement in Saw Gagessaw gauges
218,914Aug. 26, 1879E.C. Atkins,Improvement in Crosscut-Saw Handles
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