Donald W. Cotton

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Royal Oak, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic shape calibration of tubes
- Patent number 8,099,989
- Issue date Jan 24, 2012
- GM Global Technology Operations LLC
- John R. Bradley
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Electromagnetic shape calibration of tubes
- Publication number 20100024503
- Publication date Feb 4, 2010
- GM Global Technology Operations, Inc.
- John R. Bradley
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...