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 JP12012986Aexternal-prioritypatent/JPS62277379A/en
Priority claimed from JP13626186Aexternal-prioritypatent/JPS62294677A/en
Priority claimed from JP22976786Aexternal-prioritypatent/JPS6388176A/en
Application filed by Tsumura & CofiledCriticalTsumura & Co
Priority claimed from EP87903429Aexternal-prioritypatent/EP0267970B1/en
Application grantedgrantedCritical
Publication of ATE102936T1publicationCriticalpatent/ATE102936T1/en