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Gas assisted flotation apparatus
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Patent number 5,055,184
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Issue date Oct 8, 1991
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Redux Corporation
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Robert K. Carpenter
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Gas assisted flotation process
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Patent number 4,902,429
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Issue date Feb 20, 1990
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Redux Corporation
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Robert K. Carpenter
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE