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Priority claimed from JP62229239Aexternal-prioritypatent/JPH07116084B2/ja
Priority claimed from JP62231490Aexternal-prioritypatent/JPS6475439A/ja
Priority claimed from JP62231489Aexternal-prioritypatent/JPS6475438A/ja
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP88308294Aexternal-prioritypatent/EP0308133B1/de
Application grantedgrantedCritical
Publication of ATE79865T1publicationCriticalpatent/ATE79865T1/de