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Patents for Harry Harrison
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
157,393Dec. 01, 1874H. HarrisonMachines for Upsetting Tirestire upsetters
221,846Nov. 18, 1879J. Milliron, Jr.Improvement in treadle-power mechanismswoodworking power transmission
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