Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP7626480Aexternal-prioritypatent/JPS572218A/en
Priority claimed from JP56026624Aexternal-prioritypatent/JPS57140710A/en
Application filed by Shionogi & Co, Shinetsu Chemical CofiledCriticalShionogi & Co
Priority claimed from EP19810104132external-prioritypatent/EP0041665B1/en
Application grantedgrantedCritical
Publication of ATE14978T1publicationCriticalpatent/ATE14978T1/en