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Composite chromatographic article
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Patent number 4,810,381
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Issue date Mar 7, 1989
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Minnesota Mining and Manufacturing Company
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Donald F. Hagen
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Composite wound dressing
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Patent number 4,373,519
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Issue date Feb 15, 1983
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Minnesota Mining and Manufacturing Company
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Louis A. Errede
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Plant nourishment delivery device
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Patent number 4,207,705
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Issue date Jun 17, 1980
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Minnesota Mining and Manufacturing Company
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Louis A. Errede
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Sorbent foam material
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Patent number 4,128,513
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Issue date Dec 5, 1978
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Minnesota Mining and Manufacturing Company
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Louis A. Errede
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL