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Aquatic tank filtering system
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Patent number 5,585,010
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Issue date Dec 17, 1996
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Daryl Dockery
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Aquarium filtering system
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Patent number 4,559,136
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Issue date Dec 17, 1985
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Vortex Innerspace Products, Inc.
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Denzel J. Dockery
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Aquarium filtering system
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Patent number 4,490,250
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Issue date Dec 25, 1984
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Vortex Innerspace Products
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Denzel J. Dockery
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING