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 DE2929057Aexternal-prioritypatent/DE2929057C2/en
Priority claimed from DE2930622Aexternal-prioritypatent/DE2930622C2/en
Priority claimed from DE2943420Aexternal-prioritypatent/DE2943420C2/en
Application filed by Kurt Ehemann Spezialmaschinenfabrik KgfiledCriticalKurt Ehemann Spezialmaschinenfabrik Kg
Priority claimed from EP80103096Aexternal-prioritypatent/EP0022920B1/en
Application grantedgrantedCritical
Publication of ATE3071T1publicationCriticalpatent/ATE3071T1/en