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Patents Granted on 1940-07-30
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
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
2,209,656Jul. 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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