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Vacuum kneading and extruding apparatus
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Patent number 5,589,203
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Issue date Dec 31, 1996
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Sato Iron Works Co., Ltd.
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Takuya Sato
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Screw type extruding apparatus
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Patent number 5,055,027
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Issue date Oct 8, 1991
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Sato Iron Works Co., Ltd.
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Takuya Sato
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL