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Patents Granted on 1920-04-20
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,337,313Apr. 20, 1920W.F. GroeneDevice for connecting tools to spindlesmilling machines
1,337,350Apr. 20, 1920F.L. ForwardPortable planing-machinewood planers
1,337,352Apr. 20, 1920E.B. GardnerWork-table for grinding-machinesgrinders
1,337,353Apr. 20, 1920E.B. GardnerGrinding-machinegrinders
1,337,387Apr. 20, 1920C. BouillonTool Cabinetmetal lathe accessories and attachments
1,337,520Apr. 20, 1920P.E. LaneDrop Hammerdrop hammers
1,337,648Apr. 20, 1920V.A. FynnSynchronous alternating-current motorAC motors
1,337,678Apr. 20, 1920J.H. WilliamsWrenchself-adjust wrenches
1,337,770Apr. 20, 1920F.G. HobartOil Engine Feeding Devicefuel injection apparatus
1,337,771Apr. 20, 1920C.B. Jahnke, F.G. HobartOil Engineoil engines
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