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
Application filed by Ernst IslerfiledCriticalErnst Isler
Priority claimed from EP82810059Aexternal-prioritypatent/EP0058640B1/de
Application grantedgrantedCritical
Publication of ATE9454T1publicationCriticalpatent/ATE9454T1/de