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Method of manufacturing a motionless mixer
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Patent number 4,765,204
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Issue date Aug 23, 1988
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Koch Engineering Company, Inc.
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Matthew Buchholz
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Vapor-liquid contact grid
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Patent number 4,427,606
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Issue date Jan 24, 1984
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Koch Engineering Company, Inc.
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Gilbert K. Chen
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Vapor-liquid contact grid apparatus
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Patent number 4,276,242
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Issue date Jun 30, 1981
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Koch Engineering Company, Inc.
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Gilbert K. Chen
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...