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Priority claimed from JP18977084Aexternal-prioritypatent/JPS6169822A/ja
Priority claimed from JP19173084Aexternal-prioritypatent/JPS6169821A/ja
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP85306506Aexternal-prioritypatent/EP0174863B2/de
Application grantedgrantedCritical
Publication of ATE50273T1publicationCriticalpatent/ATE50273T1/de