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Priority claimed from DE3921394Aexternal-prioritypatent/DE3921394A1/de
Priority claimed from DE19904011736external-prioritypatent/DE4011736A1/de
Application filed by Gerhard EnsslefiledCriticalGerhard Enssle
Priority claimed from EP90112287Aexternal-prioritypatent/EP0405520B1/de
Application grantedgrantedCritical
Publication of ATE96870T1publicationCriticalpatent/ATE96870T1/de