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Patents for Pratt & Whitney Co.
Patents 241 - 255 of 261
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NumberDatePatenteeTitleType
1,632,600Jun. 14, 1927F.O. HoaglandInternal Grinding Machineinternal grinders
1,656,347Jan. 17, 1928J.A. DoaneSizing Device for Surface Grinderssurface grinders
1,659,247Feb. 14, 1928J.A. DoaneFull Automatic Thread Hobbing Machinethread hobbing and thread milling machines
1,664,741Apr. 03, 1928J.W. DurkeeRelieving Attachmentmetal lathe accessories and attachments
1,664,745Apr. 03, 1928F.O. HoaglandFluid Pumpoil pumps
1,669,873May 15, 1928F.O. HoaglandSnap Gaugesnap gages
1,674,973Jun. 26, 1928C.F. Clark, A.L. KlineGrinding Machineinternal grinders
1,743,604Jan. 14, 1930F.O. HoaglandAdapter for Segmental Abrasive Wheelsgrinder wheels
1,745,573Feb. 04, 1930J.J. HartenVertical Shaping Machinemetal slotting machines
1,840,361Jan. 12, 1932F.O. HoaglandSpindle Rotating Means for Milling Machinesmilling machines
1,851,283Mar. 29, 1932C.G. JohnsonGaugespecial purpose gauges
1,897,666Feb. 14, 1933F.O. HoaglandMachine Tool Spindlemetalworking power transmission
1,904,395Apr. 18, 1933A.G. WhiteheadSpindle Bearingmetalworking machine bearings
1,918,952Jul. 18, 1933W. Krause, A.B. BachmannFlexible Shaft Bench Grindergrinders
1,961,605Jun. 05, 1934J.E. Lovely, N.I. Lundberg, M.E. Lange, F.O. Hoagland, A.E. DrissnerStandard Spindle Nosemetal lathe chucks
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