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Open press thermal gap for QPF forming tools
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Patent number 7,823,430
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Issue date Nov 2, 2010
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GM Global Technology Operations, Inc.
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Richard H. Hammar
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Forming tool for multiple-thickness blanks
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Patent number 7,320,239
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Issue date Jan 22, 2008
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GM Global Technology Operations, Inc.
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Gary A. Kruger
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Roller hemming apparatus and method
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Patent number 7,290,423
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Issue date Nov 6, 2007
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GM Global Technology Operations, Inc.
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John E. Carsley
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Binder apparatus for sheet forming
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Patent number 7,210,323
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Issue date May 1, 2007
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General Motors Corporation
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Gary A. Kruger
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Hollow metallic ring seal for press
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Patent number 7,204,119
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Issue date Apr 17, 2007
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GM Global Technology Operations, Inc.
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Gary A. Kruger
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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High throughput quick-plastic-forming
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Patent number 7,028,519
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Issue date Apr 18, 2006
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General Motors Corporation
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Chongmin Kim
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Extraction system for hot formed parts
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Patent number 7,021,099
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Issue date Apr 4, 2006
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General Motors Corporation
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Edward W. Bennett
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Gravity-operated blank loading device
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Patent number 6,085,571
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Issue date Jul 11, 2000
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General Motors Corporation
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Nelson T. Brinas
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Insulating engine exhaust port liner
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Patent number 4,346,556
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Issue date Aug 31, 1982
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General Motors Corporation
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Hal H. Rice
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS