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Water-soluble film
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Patent number 7,754,318
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Issue date Jul 13, 2010
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The Nippon Synthetic Chemical Industry Co., Ltd.
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Shuichi Kitamura
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Water-soluble film of polyvinyl alcohol
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Patent number 7,067,575
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Issue date Jun 27, 2006
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The Nippon Synthetic Chemical Industry Co., Ltd.
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Syuichi Kitamura
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Film for packaging chemical agents
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Patent number 6,657,004
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Issue date Dec 2, 2003
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The Nippon Synthetic Chemical Industry Co., Ltd.
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Tomoyoshi Mizutani
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...