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Priority claimed from DE3802899Aexternal-prioritypatent/DE3802899A1/de
Priority claimed from DE8900701Uexternal-prioritypatent/DE8900701U1/de
Application filed by Lothar ElsnerfiledCriticalLothar Elsner
Priority claimed from EP89101759Aexternal-prioritypatent/EP0327080B1/de
Application grantedgrantedCritical
Publication of ATE105619T1publicationCriticalpatent/ATE105619T1/de