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Method and apparatus for forming joints
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Patent number 4,897,912
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Issue date Feb 6, 1990
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Weldex, Inc.
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Arthur L. Slasinski
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Apparatus for forming joints
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Patent number 4,856,316
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Issue date Aug 15, 1989
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Weldex, Inc.
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Arthur L. Slasinski
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Die assembly
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Patent number 4,660,403
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Issue date Apr 28, 1987
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Weldex, Inc.
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Arthur L. Slasinski
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...