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Priority claimed from JP8607986Aexternal-prioritypatent/JPS62259652A/ja
Priority claimed from JP28421986Aexternal-prioritypatent/JPH0238064B2/ja
Application filed by Ube Industries, Ltd.filedCriticalUbe Industries, Ltd.
Priority claimed from EP87105452Aexternal-prioritypatent/EP0243773B1/de
Application grantedgrantedCritical
Publication of ATE77774T1publicationCriticalpatent/ATE77774T1/de