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Priority claimed from DE3223108Aexternal-prioritypatent/DE3223108C2/en
Priority claimed from DE3238722Aexternal-prioritypatent/DE3238722C2/en
Application filed by Progress Werk Oberkirch AgfiledCriticalProgress Werk Oberkirch Ag
Priority claimed from EP83105830Aexternal-prioritypatent/EP0097315B1/en
Application grantedgrantedCritical
Publication of ATE26013T1publicationCriticalpatent/ATE26013T1/en