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Priority claimed from DE19858533417external-prioritypatent/DE8533417U1/en
Priority claimed from DE19868615917external-prioritypatent/DE8615917U1/en
Application filed by Julius P R VentzfiledCriticalJulius P R Ventz
Priority claimed from EP86906778Aexternal-prioritypatent/EP0247101B1/en
Application grantedgrantedCritical
Publication of ATE56784T1publicationCriticalpatent/ATE56784T1/en