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 DE19873701821external-prioritypatent/DE3701821A1/en
Application filed by Guenter Kern, Rainer KranzfiledCriticalGuenter Kern
Application grantedgrantedCritical
Publication of ATE63833T1publicationCriticalpatent/ATE63833T1/en