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Patents for William D. Zettler
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,924,152Feb. 09, 1960W.D. ZettlerDrawbolt for Machine Toolsmetalworking machine mechanisms
3,198,078Aug. 03, 1965W.D. Zettler, G.H. SchurgerMachine Tool Control Centermachine tool controls
3,232,143Feb. 01, 1966W.D. Zettler, G.h. SchurgerControl for Machine Toolsmachine tool controls
3,688,387Sep. 05, 1972W.D. ZettlerShuttle Type Automatic Tool Changertool changers and storage mechanisms
3,818,797Jun. 25, 1974W.D. ZettlerDrawbolt for Machine Tool Spindlesmetalworking machine mechanisms
3,824,890Jul. 23, 1974E.E. Johnson, W.D. ZettlerChip Guard for Machine Toolsmetalworking machine mechanisms
4,141,134Feb. 27, 1979F.L. Schmidt, D.J. Seicher, E.F. Woytych, W.D. ZettlerTool Changer Attachment for Multi Function Machine Toolstool changers and storage mechanisms
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