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Cooper H. Langford
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Lac Guindon, CA
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Patent Grant
Composite photocatalyst for refractory waste degradation
Patent number
4,806,514
Issue date
Feb 21, 1989
Canadian Patents and Development Limited -Societe Canadienne des Brevets et D...
Cooper H. Langford
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE