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Application filed by ダウ化工株式会社, (株) デスコfiledCriticalダウ化工株式会社
Priority to JP8192375UpriorityCriticalpatent/JPS5914178Y2/ja
Publication of JPS51161477UpublicationCriticalpatent/JPS51161477U/ja
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Publication of JPS5914178Y2publicationCriticalpatent/JPS5914178Y2/ja