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3923688
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Patent number 3,923,688
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Issue date Dec 2, 1975
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3903021
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Patent number 3,903,021
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Issue date Sep 2, 1975
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C07 - ORGANIC CHEMISTRY
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3803055
-
Patent number 3,803,055
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Issue date Apr 9, 1974
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C07 - ORGANIC CHEMISTRY
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3651160
-
Patent number 3,651,160
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Issue date Mar 21, 1972
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C07 - ORGANIC CHEMISTRY
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3493519
-
Patent number 3,493,519
-
Issue date Feb 3, 1970
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3293192
-
Patent number 3,293,192
-
Issue date Dec 20, 1966
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3260680
-
Patent number 3,260,680
-
Issue date Jul 12, 1966
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2764558
-
Patent number 2,764,558
-
Issue date Sep 25, 1956
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2673187
-
Patent number 2,673,187
-
Issue date Mar 23, 1954
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2509014
-
Patent number 2,509,014
-
Issue date May 23, 1950
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1947864
-
Patent number 1,947,864
-
Issue date Feb 20, 1934
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C01 - INORGANIC CHEMISTRY
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1868869
-
Patent number 1,868,869
-
Issue date Jul 26, 1932
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1847624
-
Patent number 1,847,624
-
Issue date Mar 1, 1932
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL