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Patents for E. W. Johnson
Patents 16 - 19 of 19
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
552,029Dec. 24, 1895N. WitsueMonkey Wrenchnut wrenches
CA-53,661Oct. 03, 1896L.B. Stenberg, A.W. FreemanPipe-Wrenchpipe wrenches
572,857Dec. 08, 1896L.H. BarnesWrench For Turning Nuts, Screw-Taps and the Likeratchet wrenches
577,158Feb. 16, 1897W.F. DavisElectric Igniter for Explosive Enginesignition systems
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