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Antibiotics plusbacin
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Patent number 5,171,836
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Issue date Dec 15, 1992
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Shionogi & Co., Ltd.
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Tadashi Yoshida
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C07 - ORGANIC CHEMISTRY
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Antibiotics PB-6042S
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Patent number 5,045,458
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Issue date Sep 3, 1991
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Shionogi & Co., Ltd.
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Tadashi Yoshida
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C07 - ORGANIC CHEMISTRY
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Anti-mycoplasma agent
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Patent number 4,950,686
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Issue date Aug 21, 1990
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Shionogi & Co., Ltd.
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Eiji Kondo
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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