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David L. Turpin
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Springboro, OH, US
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last 30 patents
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Patent Grant
Methods of thermo-mechanically processing tool steel and tools made...
Patent number
9,481,023
Issue date
Nov 1, 2016
Dayton Progress Corporation
Christon L. Shepard
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Methods of thermo-mechanically processing tool steel and tools made...
Patent number
8,968,495
Issue date
Mar 3, 2015
Dayton Progress Corporation
Christon L. Shepard
C21 - METALLURGY OF IRON
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last 30 patents
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Patent Application
METHODS OF THERMO-MECHANICALLY PROCESSING TOOL STEEL AND TOOLS MADE...
Publication number
20150114199
Publication date
Apr 30, 2015
DAYTON PROGRESS CORPORATION
Christon L. Shepard
B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Patent Application
METHODS OF THERMO-MECHANICALLY PROCESSING TOOL STEEL AND TOOLS MADE...
Publication number
20090229417
Publication date
Sep 17, 2009
DAYTON PROGRESS CORPORATION
Christon L. Shepard
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...