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Priority claimed from JP6717079Aexternal-prioritypatent/JPS55167260A/en
Priority claimed from JP6716979Aexternal-prioritypatent/JPS55167259A/en
Application filed by Takeda Chemical Industries, Ltd.filedCriticalTakeda Chemical Industries, Ltd.
Priority claimed from EP19800102918external-prioritypatent/EP0019893B1/en
Application grantedgrantedCritical
Publication of ATE3281T1publicationCriticalpatent/ATE3281T1/en