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Patents for H. E. Long
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
68,519Sep. 03, 1867H.E. LongWoodworker's Leg Viseleg vises
103,212May 17, 1870H.E. LongRotary Steam Enginesteam engines
744,963Nov. 24, 1903C.T. FrantzMachinist's Protractorprotractors
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