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Continuous kneading machine
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Patent number 6,224,251
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Issue date May 1, 2001
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Sumitomo Heavy Industries, Ltd.
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Masafumi Kuratsu
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Processing vessel
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Patent number 5,667,758
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Issue date Sep 16, 1997
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Sumitomo Heavy Industries, Ltd.
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Nobuo Matsugi
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F28 - HEAT EXCHANGE IN GENERAL
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Horizontal-type biaxial kneader
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Patent number 5,230,561
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Issue date Jul 27, 1993
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Sumitomo Heavy Industrie's, Ltd.
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Haruyuki Nishimi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Viscous liquid processor
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Patent number 5,230,562
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Issue date Jul 27, 1993
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Sumitomo Heavy Industries, Ltd.
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Haruyuki Nishimi
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Agitator
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Patent number 5,102,229
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Issue date Apr 7, 1992
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Sumitomo Heavy Industries, Ltd.
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Makoto Wada
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL