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Water treatment system
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Patent number 4,687,574
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Issue date Aug 18, 1987
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The Munters Corporation
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Goran Hellman
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Lamella sedimentation device
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Patent number 4,595,504
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Issue date Jun 17, 1986
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SFS Swede Filter System, Inc.
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Goran Hellman
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL