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Priority claimed from JP9307476Aexternal-prioritypatent/JPS5318790A/en
Priority claimed from JP10336076Aexternal-prioritypatent/JPS5329125A/en
Application filed by Kureha Chemical Ind Co LtdfiledCriticalKureha Chemical Ind Co Ltd
Publication of PH12995ApublicationCriticalpatent/PH12995A/en