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Gregory A. Johnson
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Dearborn Heights, MI, US
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last 30 patents
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Patent Grant
Apparatus for cutting a keyway in a mill roll
Patent number
5,439,335
Issue date
Aug 8, 1995
Minnesota Mining and Manufacturing Company
Gary L. Curtis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Method for cutting a keyway in a mill roll
Patent number
5,439,435
Issue date
Aug 8, 1995
Minnesota Mining and Manufacturing Company
Gary L. Curtis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for cutting a keyway in a mill roll
Patent number
5,247,740
Issue date
Sep 28, 1993
Minnesota Mining and Manufacturing Company
Gary L. Curtis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR