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Patents Granted on 1920-12-28
Patents 1 - 15 of 19
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NumberDatePatenteeTitleType
D56,812Dec. 28, 1920A. HarrisScrewdriverscrewdrivers
CA-207,033Dec. 28, 1920H.G. NorwoodWrenchalligator wrenches
1,363,222Dec. 28, 1920J.R. BeckettAngle Plateangle bars and angle plates
1,363,274Dec. 28, 1920J.W. SaffoldSelf Adjusting Wrenchself-adjust wrenches
1,363,288Dec. 28, 1920C.A. SwansonMower-guardhay or straw cutters
1,363,312Dec. 28, 1920A.A. ClarkeSurface-treating machinedrum sanders
1,363,316Dec. 28, 1920J. DudekCap Wrenchjar wrenches
1,363,329Dec. 28, 1920A. LevedahlHose-clamp
1,363,343Dec. 28, 1920H.G. NorwoodWrenchalligator wrenches
1,363,415Dec. 28, 1920F.H. HopkinsDifferential Pressure Gagevacuum and pressure gauges
1,363,465Dec. 28, 1920A.B. GardellaBoard Drop Hammerdrop hammers
1,363,476Dec. 28, 1920B.S. LovelandScraping-tool-forming machinetool making machines
1,363,506Dec. 28, 1920W.F. GroeneLathehorizontal boring mills
1,363,587Dec. 28, 1920B.M. HansonMetal Working Machinemetal slotting machines
1,363,786Dec. 28, 1920J.G. HeyBelt-gearing for drill-pressesdrill presses
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