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Duplex type continuous mixer
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Patent number 4,380,397
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Issue date Apr 19, 1983
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Kobe Steel, Ltd.
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Shinji Hashizume
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Continuous mixing machine
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Patent number 4,332,481
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Issue date Jun 1, 1982
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Kobe Steel, Ltd.
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Kimio Inoue
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL