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Farin L. Derrick
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Columbia, SC, US
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last 30 patents
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Patent Grant
Roller burnishing tool for effecting diminishing stress reversal on...
Patent number
5,095,727
Issue date
Mar 17, 1992
Cogsdill Tool Products, Inc.
William J. Westerman
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...