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Drawing method
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Patent number 6,544,462
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Issue date Apr 8, 2003
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Ube Nitto Kasei Co., Ltd.
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Shinji Ota
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Drawing method and drawn material
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Patent number 6,203,902
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Issue date Mar 20, 2001
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Ube Nitto Kasei Co., Ltd.
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Shinji Ota
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL