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 Gellert Jobst UfiledCriticalGellert Jobst U
Priority claimed from EP89110800Aexternal-prioritypatent/EP0402500B1/en
Application grantedgrantedCritical
Publication of ATE110621T1publicationCriticalpatent/ATE110621T1/en