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Patents for E. R. Hall
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
89,217Apr. 20, 1869E.R. HallImprovement in wood-sawing machinesfirewood machines
91,121Jun. 08, 1869E.R. HallImprovement in sawing-machinescircular sawmills
97,393Nov. 30, 1869W.H. Town, E.R. HallImprovement in sawing-machinesreciprocating saws
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