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Priority claimed from DE19803033230external-prioritypatent/DE3033230C2/en
Priority claimed from DE19813114731external-prioritypatent/DE3114731C2/en
Application filed by Albert-Frankenthal AgfiledCriticalAlbert-Frankenthal Ag
Priority claimed from EP81106632Aexternal-prioritypatent/EP0047435B1/en
Application grantedgrantedCritical
Publication of ATE10603T1publicationCriticalpatent/ATE10603T1/en