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Valve for co-injection molding apparatus
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Patent number 7,731,489
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Issue date Jun 8, 2010
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Mold-Masters (2007) Limited
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Fabrice Fairy
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Hot-runner mold for injection molding
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Patent number 4,657,496
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Issue date Apr 14, 1987
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Gifu Husky Co., Ltd.
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Hirofumi Ozeki
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3780764
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Patent number 3,780,764
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Issue date Dec 25, 1973
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL