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Application filed by 北村バルブ株式会社filedCritical北村バルブ株式会社
Priority to JP1977106964UpriorityCriticalpatent/JPS6037494Y2/ja
Publication of JPS5434133UpublicationCriticalpatent/JPS5434133U/ja
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Publication of JPS6037494Y2publicationCriticalpatent/JPS6037494Y2/ja