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All Patents in class 81/57.4
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
285,484Sep. 25, 1883M.C. HenleyScrew-driverscrewdriver mechanisms
496,692May 02, 1893C.R. MayneCombined Wagon Jack and Wrenchaxle nut wrench combination tools
728,458May 19, 1903B.M. HansonFluid Pressure Operated Chuckmetal lathe chucks
1,540,749Jun. 09, 1925A.A. BeachScrew Driving Devicescrewdriver mechanisms
2,042,257May 26, 1936C.W. Hopkins, R.E. HarrisonMachine Toolgrinding machines
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