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William Parker
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Garden City, MI, US
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last 30 patents
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Patent Grant
Internal mandrel and method
Patent number
8,631,671
Issue date
Jan 21, 2014
GM Global Technology Operations LLC
Paul E. Krajewski
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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last 30 patents
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Patent Application
INTERNAL MANDREL AND METHOD
Publication number
20120260709
Publication date
Oct 18, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Paul E. Krajewski
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...