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Optimizing controller
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Patent number 5,511,402
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Issue date Apr 30, 1996
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Kenneth A. Kauffman
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Straight rod stock processor
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Patent number 5,355,708
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Issue date Oct 18, 1994
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Kenneth A. Kauffman
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Table bender controller
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Patent number 5,315,522
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Issue date May 24, 1994
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Kauffman; Kenneth A.
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Kenneth A. Kauffman
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Separable roller sleeve
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Patent number 4,926,995
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Issue date May 22, 1990
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KRB Machinery Co.
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Kenneth A. Kauffman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL