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Patents Granted on 1940-07-30
Patents 1 - 7 of 7
First set of recordsLast set of records
2,209,379Jul. 30, 1940M.A. BellClamping deviceclamps
2,209,484Jul. 30, 1940H.E. TautzVariable speed mechanismdrill presses
2,209,558Jul. 30, 1940J. Bing, O. BlockMagnetic clamping appliancesurface gauges
2,209,562Jul. 30, 1940J.C. DraderWorm Element Lapping Machinegear lapping machines
2,209,656Jul. 30, 1940A.W. MallVibrator
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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