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Patents for J. F. Callan
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
20,344May 25, 1858N.J. GloverMachine for turning irregular formspattern lathes
22,073Nov. 16, 1858A. GregoryWeight/Balance Shifting Hammerhammer handles
88,002Mar. 23, 1869G. AtkinsImprovement in the Manufacturing of Sheet Irontool making machines
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