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Method for manufacturing resin pipe
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Patent number 11,453,150
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Issue date Sep 27, 2022
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The Yokohama Rubber Co., Ltd.
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Nobuaki Kuribayashi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method of manufacturing resin pipe
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Patent number 11,433,583
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Issue date Sep 6, 2022
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The Yokohama Rubber Co., Ltd.
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Nobuaki Kuribayashi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL