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Priority claimed from JP63075420Aexternal-prioritypatent/JPH01246406A/ja
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP89302912Aexternal-prioritypatent/EP0334653B1/de
Application grantedgrantedCritical
Publication of ATE93902T1publicationCriticalpatent/ATE93902T1/de