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Priority claimed from DE8707973Uexternal-prioritypatent/DE8707973U1/de
Priority claimed from DE8715219Uexternal-prioritypatent/DE8715219U1/de
Application filed by Bohnacker TegometallfiledCriticalBohnacker Tegometall
Priority claimed from EP88108916Aexternal-prioritypatent/EP0293916B1/de
Application grantedgrantedCritical
Publication of ATE83138T1publicationCriticalpatent/ATE83138T1/de