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Metal-working emulsion reclaiming process
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Patent number 4,357,243
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Issue date Nov 2, 1982
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Dober Chemical Corporation
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John F. Dobrez
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Anti-corrosion composition
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Patent number 4,202,796
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Issue date May 13, 1980
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Chemed Corporation
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Jose T. Jacob
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Boiler water treatment
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Patent number 4,067,690
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Issue date Jan 10, 1978
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Chemed Corporation
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Dionisio G. Cuisia
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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