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Priority claimed from JP19781187Aexternal-prioritypatent/JP2521103B2/ja
Priority claimed from JP3049088Aexternal-prioritypatent/JP2514998B2/ja
Priority claimed from JP63047212Aexternal-prioritypatent/JPH01221929A/ja
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP88307259Aexternal-prioritypatent/EP0302746B1/de
Application grantedgrantedCritical
Publication of ATE103742T1publicationCriticalpatent/ATE103742T1/de