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Oxygen impregnation method
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Patent number 4,101,608
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Issue date Jul 18, 1978
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Towler; Martin L.
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Jep T. Bracey
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Oxygenation impregnation apparatus
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Patent number 4,034,030
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Issue date Jul 5, 1977
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Towler; Martin L.
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Jep T. Bracey
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE