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Ozone contact chamber
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Patent number 6,207,064
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Issue date Mar 27, 2001
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Joseph Gargas
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Tubular vortex separator
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Patent number 6,149,825
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Issue date Nov 21, 2000
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Joseph Gargas
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Vortex aquarium filter
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Patent number 5,866,018
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Issue date Feb 2, 1999
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The Hartz Mountain Corporation
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Robert H. Hyde
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Fluidized bed aquarium filter
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Patent number 5,632,887
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Issue date May 27, 1997
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The Wardley Corporation
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Joseph E. Gargas
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Aquarium pH adjustment apparatus
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Patent number 5,529,751
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Issue date Jun 25, 1996
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The Wardley Corporation
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Joseph E. Gargas
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE