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Priority claimed from JP7281279Aexternal-prioritypatent/JPS55164671A/ja
Priority claimed from JP3636580Aexternal-prioritypatent/JPS56133259A/ja
Application filed by Takeda Chemical Industries, Ltd.filedCriticalTakeda Chemical Industries, Ltd.
Priority claimed from EP80301898Aexternal-prioritypatent/EP0021676B1/de
Application grantedgrantedCritical
Publication of ATE4641T1publicationCriticalpatent/ATE4641T1/de