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All Patents of Type: stoneworking tools
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
359,019Mar. 08, 1887J.C. HyndmanRock Drillquarrying tools
467,937Feb. 02, 1892E.E. Winkley, E.H. KavanaghStone Working Machinestoneworking tools
512,605Jan. 09, 1894J.M. CrouchQuarrying Toolquarrying tools
513,196Jan. 23, 1894J. O'DonnellStone-cutter's bush-hammerstoneworking tools
533,352Jan. 29, 1895J.E. ErnestSlate Cutter and Trimmerslaters tools
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