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Plywood layup line
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Patent number 4,342,615
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Issue date Aug 3, 1982
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George Koch Sons, Inc.
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Robert L. Koch
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Drying oven
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Patent number 4,216,592
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Issue date Aug 12, 1980
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George Koch Sons, Inc.
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Robert L. Koch
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F26 - DRYING
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Radiation cure reactor
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Patent number 4,143,278
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Issue date Mar 6, 1979
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Geo. Koch Sons, Inc.
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Robert L. Koch
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F26 - DRYING
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Radiation curable coating process
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Patent number 4,113,894
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Issue date Sep 12, 1978
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George Koch Sons, Inc.
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Robert L. Koch
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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