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All Patents in class 451
Patents 2131 - 2145 of 3754
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NumberDatePatenteeTitleType
1,874,331Aug. 30, 1932L.T. MedholdtKnife grinder support for woodworking machineswood planers
1,874,583Aug. 30, 1932L.F. NenningerGrinding Machinerygrinding machines
1,877,348Sep. 13, 1932N.F. McNaught, E.H. PetersonValve grinder
1,877,500Sep. 13, 1932H.R. Isler, S. EinsteinHydraulic Grindergrinding machines
1,877,505Sep. 13, 1932B.A. Kearns, F.S. HaasGrinding Machinegrinding machines
1,877,515Sep. 13, 1932C.G. LiljebergGrinding Machinegrinding machines
1,877,881Sep. 20, 1932A.M. JohnsonHoning machinehoning machines
1,878,603Sep. 20, 1932A.E. RobinsonLapping Machinegear lapping machines
1,880,347Oct. 04, 1932K.L. HerrmannMethod of Grinding Bearing Racesgrinders
1,881,984Oct. 11, 1932C.E. Van NormanSlide Mechanism for Precision Grinding Machinesgrinding machines
1,885,123Nov. 01, 1932C.L. MattisonSanding drumsanding machines
1,887,623Nov. 15, 1932C.H. DriverSurfacing rolldrum sanders
1,888,679Nov. 22, 1932W. KnappSafety device for cutting machinesradial arm saws
1,889,248Nov. 29, 1932A.J. KilmerAdjustible Tool Supportgrinding fixtures
1,891,185Dec. 13, 1932R.H. Miller, A.L. MillerGauge Devicespecial purpose gauges
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