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 DE3024743Aexternal-prioritypatent/DE3024743C2/de
Application filed by Gebrueder Buehler AgfiledCriticalGebrueder Buehler Ag
Priority claimed from EP81102073Aexternal-prioritypatent/EP0036219B1/de
Application grantedgrantedCritical
Publication of ATE6353T1publicationCriticalpatent/ATE6353T1/de