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 JP5586282Aexternal-prioritypatent/JPS58172537A/ja
Priority claimed from JP5643382Aexternal-prioritypatent/JPS58173465A/ja
Priority claimed from JP57056432Aexternal-prioritypatent/JPS58173455A/ja
Priority claimed from JP7013682Aexternal-prioritypatent/JPS58187860A/ja
Application filed by Wako Pure Chem Ind LtdfiledCriticalWako Pure Chem Ind Ltd
Priority claimed from EP83103297Aexternal-prioritypatent/EP0091636B1/de
Application grantedgrantedCritical
Publication of ATE58245T1publicationCriticalpatent/ATE58245T1/de