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All Patents of Type: lapping machines
Patents 1 - 15 of 22
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NumberDatePatenteeTitleType
1,486,337Mar. 11, 1924W.E. HokeMachine for Making Gauges and Other Articleslapping machines
1,744,886Jan. 28, 1930W.F. GroeneLapping machinelapping machines
1,878,603Sep. 20, 1932A.E. RobinsonLapping Machinegear lapping machines
1,916,117Jun. 27, 1933A.E. RobinsonLapping Machinegear lapping machines
1,916,118Jun. 27, 1933W.G. Hoelscher, A.E. RobinsonLapping Machinegear lapping machines
1,989,651Jan. 29, 1935R.S. DrummondMethod of finishing gearsgear making machines
1,989,652Jan. 29, 1935R.S. DrummondMethod for finishing internal gearsgear making machines
2,111,045Mar. 15, 1938R.S. DrummondLapping machinegear making machines
2,111,271Mar. 15, 1938L.F. NenningerApparatus for Lappinglapping machines
2,209,071Jul. 23, 1940E.J. BullardGrinding and Lapping Machinelapping machines
2,391,388Dec. 25, 1945E.J. BullardGrinding and Lapping Machinelapping machines
2,456,061Dec. 14, 1948G. HohwartDouble end center lapping machineslapping machines
2,480,285Aug. 30, 1949E.J. BullardLapping Machinelapping machines
2,565,590Aug. 28, 1951E.J. BullardLapping Machinelapping machines
GB-772,246Jun. 04, 1953K.L. LindmarkImprovements in and relating to lapping machineslapping machines
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