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Priority claimed from JP49012860Aexternal-prioritypatent/JPS5236786B2/ja
Priority claimed from AT77275Aexternal-prioritypatent/AT338512B/de
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority to AT570076ApriorityCriticalpatent/AT338517B/de
Publication of ATA570076ApublicationCriticalpatent/ATA570076A/de
Application grantedgrantedCritical
Publication of AT338517BpublicationCriticalpatent/AT338517B/de