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Patents Granted on 1940-07-30
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,209,307Jul. 30, 1940F. Esz, A.H. DallSurface Finishing Machinegrinding machines
2,209,379Jul. 30, 1940M.A. BellClamping deviceclamps
2,209,469Jul. 30, 1940E.G. Roehm, L.F. NenningerOperating Control Mechanism for Milling Machinesmilling machines
2,209,484Jul. 30, 1940H.E. TautzVariable speed mechanismdrill press speed change mechanisms
2,209,558Jul. 30, 1940O. Block, J. BingMagnetic clamping appliancesurface gauges
2,209,562Jul. 30, 1940J.C. DraderWorm Element Lapping Machinegear lapping machines
2,209,656Jul. 30, 1940A.W. MallVibrator
2,209,767Jul. 30, 1940E.J. DillmanThermostatthermostats
2,209,768Jul. 30, 1940E.J. DillmanThermostatthermostats
2,209,938Jul. 30, 1940L.L. SchauerLubricating meansradial drill presses
2,209,939Jul. 30, 1940L.L. SchauerAutomatically controlled gravity oilermetalworking machine lubrication
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