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Anthony A. Duerring
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Kennewick, WA, US
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last 30 patents
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Patent Grant
Rollstand having easily replaceable roll dies
Patent number
4,993,251
Issue date
Feb 19, 1991
Sandvik Special Metals Corporation
David J. Szendre
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Low inertia mechanism for repositioning a workpiece in a rocker mill
Patent number
4,955,220
Issue date
Sep 11, 1990
Sandvik Special Metals Corporation
Anthony A. Duerring
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for reloading a pilgering mill
Patent number
4,930,328
Issue date
Jun 5, 1990
Sandvik Special Metals Corp.
Anthony A. Duerring
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...