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Patents for Benjamin F. Stephens
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
146,287Jan. 06, 1874D. SlateImprovement in Milling-Machinesmilling machines
156,105Oct. 20, 1874B.F. StephensImprovement in Detachable Vise Jawsbench vises
156,386Oct. 27, 1874B.F. StephensImprovement in movable vise-jawsvise jaws
205,434Jun. 25, 1878B.F. StephensHand Visehand vises
234,930Nov. 30, 1880B.F. StephensTaper jaw for visesbench vises
235,177Dec. 07, 1880B.F. StephensVise-jawsvise jaws
235,469Dec. 14, 1880B.F. StephensChuck for planing-machinesvises
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