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Mold for compression molding a resin article
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Patent number 6,294,121
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Issue date Sep 25, 2001
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Sumitomo Chemical Company, Limited
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Takahisa Hara
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Polypropylene-based foamed sheet
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Patent number 6,124,025
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Issue date Sep 26, 2000
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Sumitomo Chemical Company, Limited
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Takeo Kitayama
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Method of making multilayer molded article
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Patent number 5,980,805
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Issue date Nov 9, 1999
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Sumitomo Chemical Co., Ltd.
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Yoshinori Ohmura
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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