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Vent-type plastication molding machine
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Patent number 4,511,319
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Issue date Apr 16, 1985
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UBE Industries, Inc.
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Seizo Takayama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Resin moulding screws
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Patent number 4,215,978
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Issue date Aug 5, 1980
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UBE Industries, Ltd.
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Seizo Takayama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL