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Valves for chemical containers
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Patent number 4,805,675
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Issue date Feb 21, 1989
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Merck Patent Gesellschaft mit beschrankter Haftung
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Frank Joseph
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Dietetic foodstuff and its production
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Patent number 4,211,768
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Issue date Jul 8, 1980
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Merck Patent Gesellschaft mit beschrankter Haftung
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Roland Vogel
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Dietetic foodstuff and its production
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Patent number 4,139,642
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Issue date Feb 13, 1979
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Merck Patent Gesellschaft mit beschrankter Haftung
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Roland Vogel
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES