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Chemical dispersant for viscous oils
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Patent number 4,560,482
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Issue date Dec 24, 1985
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Exxon Research and Engineering Co.
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Gerard P. Canevari
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3850807
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Patent number 3,850,807
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Issue date Nov 26, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1887774
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Patent number 1,887,774
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Issue date Nov 15, 1932
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL