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Chelating compounds and their use
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Patent number 5,196,576
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Issue date Mar 23, 1993
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Nihon Medi+Physics Co., Ltd.
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Shigemi Seri
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Chelating compounds and their use
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Patent number 5,138,039
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Issue date Aug 11, 1992
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Nihon Medi+Physics Co., Ltd.
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Shigemi Seri
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Porphyrin derivatives
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Patent number 4,849,207
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Issue date Jul 18, 1989
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Nihon Medi+Physics Co., Ltd.
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Isao Sakata
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C07 - ORGANIC CHEMISTRY