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All Patents in class 470/150
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,342Sep. 25, 1839J.B. BellemereMode of Squaring and Finishing the Heads of Bolts, Nut and Other Plain Similar Surfaceslathe tools
1,587,011Jun. 01, 1926R.S. CrosbyTool support for metal-cutting machinesnut or bolt making machines
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