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Priority claimed from DE3931012Aexternal-prioritypatent/DE3931012C1/de
Priority claimed from DE3933426Aexternal-prioritypatent/DE3933426A1/de
Application filed by Ieg Ind Engineering GmbhfiledCriticalIeg Ind Engineering Gmbh
Application grantedgrantedCritical
Publication of ATE88772T1publicationCriticalpatent/ATE88772T1/de