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Priority claimed from JP3155050Aexternal-prioritypatent/JP3068242B2/ja
Priority claimed from JP03105592Aexternal-prioritypatent/JP3260156B2/ja
Priority claimed from JP03193892Aexternal-prioritypatent/JP3190090B2/ja
Application filed by Idemitsu Petrochem KkfiledCriticalIdemitsu Petrochem Kk
Application grantedgrantedCritical
Publication of TW234112BpublicationCriticalpatent/TW234112B/zh