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Patents Granted on 1939-12-__
Patents 1 - 15 of 39
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NumberDatePatenteeTitleType
CA-385,422Dec. 05, 1939L.A. WilkieConvertible filing machinefiling machines
2,182,228Dec. 05, 1939W.R. Meyer, W.F. GroeneMethod of machining crankshaftscrankshaft lathes
2,182,231Dec. 05, 1939R.K. BlondAttachment for cutter grinderstool grinders
2,182,234Dec. 05, 1939A.H. PneumanPower operated hacksawmetal sawing machines
2,182,411Dec. 05, 1939J.A. Scully, B.F. RosenbergTool Holderdrilling and boring tool holders
2,182,478Dec. 05, 1939R.G. JacobsonBoring Headboring heads
2,182,725Dec. 05, 1939C. JonesTiltable adjustable sanding wheelsanding machines
GB-515,554Dec. 07, 1939H.H. AsbridgeImprovements in grinding or abrading machines
GB-515,599Dec. 08, 1939J. JewsburyImprovements relating to radial-arm drilling machinesradial drill presses
2,182,922Dec. 12, 1939E.A. HeschelMethod of Producing a Socket Wrench Headwrench sockets
2,183,207Dec. 12, 1939D.D. WileValve Structurevalves
2,183,258Dec. 12, 1939J.R. HarmanPower operated routerrouting machines
2,183,297Dec. 12, 1939G.K. McKee, C.E. BernittMachine tooldrill presses
2,183,362Dec. 12, 1939G. Davenport, W.F. ZimmermannRoller Bearing Mounted Work Tablegear making machines
2,183,363Dec. 12, 1939W.F. ZimmermannWork Tablegear hobbing machines
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