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Patents for H. Knippenberg
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
154,000	Aug. 11, 1874	E.C. Atkins	Improvement in Saw-Handles	crosscut saw handles
156,967	Nov. 17, 1874	E.C. Atkins	Improvement in Saw Gages	saw gauges
218,914	Aug. 26, 1879	E.C. Atkins,	Improvement in Crosscut-Saw Handles

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