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Anti-spillage and anti-drip device
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Patent number 4,972,865
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Issue date Nov 27, 1990
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Roy D. Mattson
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B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
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Adjustable fluid spray gun
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Patent number 4,817,872
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Issue date Apr 4, 1989
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Roy D. Mattson
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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Composition for skin care
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Patent number 4,738,987
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Issue date Apr 19, 1988
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Kemsearch, Inc.
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Roy D. Mattson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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