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All Patents in class 470/108
Patents 1 - 2 of 2
First set of recordsLast set of records
84,410Nov. 24, 1868J.T. CampbellImprovement in Nut Planersnut or bolt making machines
730,882Jun. 16, 1903F.M. DavisAutomatic multispindle machinenut or bolt making machines
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