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Priority claimed from DE19813131027external-prioritypatent/DE3131027C2/de
Priority claimed from DE19823211732external-prioritypatent/DE3211732A1/de
Application filed by Xaver FrankfiledCriticalXaver Frank
Priority claimed from EP82107066Aexternal-prioritypatent/EP0071982B1/de
Application grantedgrantedCritical
Publication of ATE18339T1publicationCriticalpatent/ATE18339T1/de