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All Patents of Type: sharpening apparatus
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
71,442Nov. 26, 1867A.B. BeanImprovement in knife-sharpenersharpening apparatus
97,090Nov. 23, 1869W.H. HowlandImprovement in knife-sharpenersharpening apparatus
2,841,926Jul. 08, 1958W.A. LebusKnife Sharpener Casingsharpening apparatus
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