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 JP5900081Aexternal-prioritypatent/JPS57173813A/ja
Priority claimed from JP12480381Aexternal-prioritypatent/JPS5827122A/ja
Application filed by Tohru NegishifiledCriticalTohru Negishi
Priority claimed from EP82900315Aexternal-prioritypatent/EP0076857B1/de
Application grantedgrantedCritical
Publication of ATE16425T1publicationCriticalpatent/ATE16425T1/de