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Patents Granted on 1928-08-??
Patents 1 - 15 of 39
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NumberDatePatenteeTitleType
CA-282,297Aug. 07, 1928A.A. CriquiDrying process
CA-282,331Aug. 07, 1928E.E. DavisExpansible boring toolboring heads
1,679,413Aug. 07, 1928H.R. Isler, L.F. Nenninger, S. EinsteinCutter Grindertool grinders
1,679,457Aug. 07, 1928J.B. WiardDynamo-electric machinemotor cooling
1,679,506Aug. 07, 1928A. StormCylinder-renewing machinecylinder maintenance
1,679,529Aug. 07, 1928A.M. JohnsonAutomatic machine tooltapping machines
1,679,530Aug. 07, 1928A.M. JohnsonAutomatic drilling or tapping machinedrill presses
1,679,531Aug. 07, 1928A.M. JohnsonGang machine toolmultiple spindle drill presses
1,679,541Aug. 07, 1928F.W. ParkerShapermetal shapers
1,679,825Aug. 07, 1928R.J. Holmgreen, J.H. HolmgreenRotary Well Drilling Machinewell drilling machines
1,679,884Aug. 07, 1928H.T. ThomasAttachment for drillshandheld power tool accessories
1,679,933Aug. 07, 1928Combination Saw and Square
1,680,074Aug. 07, 1928J.J. Van HamersveldTaper Turning Attachment for Machine Toolsmetal lathe accessories and attachments
1,680,141Aug. 07, 1928W.T. EmmesReversing and braking mechanism for machine toolsmetalworking machine mechanisms
1,680,212Aug. 07, 1928G. FeatherElectrically-driven drilling machine and like machine tooldrill presses
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