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Radial jet aerator module
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Patent number 3,951,344
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Issue date Apr 20, 1976
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Houdaille Industries, Inc.
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George E. Wilson
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Flocculation apparatus
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Patent number 3,933,642
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Issue date Jan 20, 1976
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George E. Wilson
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE