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 DE19853516265external-prioritypatent/DE3516265A1/en
Application filed by Welp Entwicklungs Kg DrfiledCriticalWelp Entwicklungs Kg Dr
Priority claimed from EP85108144Aexternal-prioritypatent/EP0171572B1/en
Application grantedgrantedCritical
Publication of ATE51454T1publicationCriticalpatent/ATE51454T1/en