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Penicillin 1,1-dioxides
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Patent number 4,344,955
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Issue date Aug 17, 1982
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Bayer Aktiengesellschaft
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Ekkehard Niemers
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Penicillin derivatives
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Patent number 4,235,774
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Issue date Nov 25, 1980
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Bayer Aktiengesellschaft
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Michael Preiss
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C07 - ORGANIC CHEMISTRY
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Penicillins and their use
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Patent number 4,218,451
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Issue date Aug 19, 1980
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Bayer Aktiengesellschaft
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Peter Feyen
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C07 - ORGANIC CHEMISTRY
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