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Flocculant control system
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Patent number 5,006,231
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Issue date Apr 9, 1991
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Consolidation Coal Company
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Hayward B. Oblad
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Flocculant control system
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Patent number 4,950,908
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Issue date Aug 21, 1990
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Consolidation Coal Company
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Hayward B. Oblad
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Product separator
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Patent number 3,933,249
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Issue date Jan 20, 1976
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The United States of America as represented by the United States Energy Resea...
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Robert A. Welsh
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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3854586
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Patent number 3,854,586
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Issue date Dec 17, 1974
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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3837582
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Patent number 3,837,582
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Issue date Sep 24, 1974
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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3762546
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Patent number 3,762,546
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Issue date Oct 2, 1973
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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3747753
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Patent number 3,747,753
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Issue date Jul 24, 1973
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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3722676
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Patent number 3,722,676
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Issue date Mar 27, 1973
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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3581888
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Patent number 3,581,888
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Issue date Jun 1, 1971
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING