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All Patents in class 81/DIG4
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
19,954Apr. 13, 1858E.S. ScriptureImprovement in Screw-Wrenchesnut wrenches
138,932May 13, 1873H.F. ReadImprovement in Wrenchesquick adjust wrenches
170,089Nov. 16, 1875B.F. JoslynWrenchscrew adjust wrenches
170,860Dec. 07, 1875B.F. JoslynWrenchquick adjust wrenches
172,551Jan. 25, 1876J.R. BrownImprovement in Coach-Wrenchespipe and nut combination wrenches
190,636May 08, 1877L.S. StarrettWrenchscrew adjust wrenches
241,881May 24, 1881H.F. ReadWrenchnut wrenches
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