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Deep drawing process of resin sheet
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Patent number 4,866,117
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Issue date Sep 12, 1989
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Mitsubishi Petrochemical Co., Ltd.
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Akihiko Egashira
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Semiconductive resin composition
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Patent number 4,696,765
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Issue date Sep 29, 1987
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Mitsubishi Petrochemical Co., Ltd.
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Tetsuji Kakizaki
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Semiconducting resin compositions
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Patent number 4,412,938
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Issue date Nov 1, 1983
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Mitsubishi Petrochemical Company Limited
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Tetsuji Kakizaki
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...