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Multi-stage dual wall hydroforming
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Patent number 5,475,911
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Issue date Dec 19, 1995
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Gary L. Wells
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Multi-stage dual wall hydroforming
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Patent number 5,363,544
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Issue date Nov 15, 1994
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Benteler Industries, Inc.
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Gary L. Wells
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Nipple forming apparatus
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Patent number 4,798,076
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Issue date Jan 17, 1989
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Benteler Industries, Inc.
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Donald R. Rigsby
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Laser contour cut door beams
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Patent number 4,708,390
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Issue date Nov 24, 1987
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Benteler Corporation
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Gunther H. Palentyn
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B60 - VEHICLES IN GENERAL
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Laser contour cut manifolds
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Patent number 4,644,128
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Issue date Feb 17, 1987
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Benteler Corporation
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Gunther H. Palentyn
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Laser contour cut door beams
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Patent number 4,636,608
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Issue date Jan 13, 1987
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Benteler Corporation
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Gunther H. Palentyn
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR