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Patents for John M. Long
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
136,253Feb. 25, 1873J.M. LongPower Hammersdrop hammers
252,111Jan. 10, 1882C.E. McBeth, J.M. LongPunching-machinemetal punching machines
295,779Mar. 25, 1884J.M. Long, C.E. McBethCultivator
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