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Priority claimed from DE19813107398external-prioritypatent/DE3107398C2/de
Priority claimed from DE19823200078external-prioritypatent/DE3200078A1/de
Application filed by Tefo AgfiledCriticalTefo Ag
Priority claimed from EP82101504Aexternal-prioritypatent/EP0059458B1/de
Application grantedgrantedCritical
Publication of ATE14334T1publicationCriticalpatent/ATE14334T1/de