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Priority claimed from DE8706551Uexternal-prioritypatent/DE8706551U1/de
Priority claimed from DE8708506Uexternal-prioritypatent/DE8708506U1/de
Application filed by Niemann Hans DieterfiledCriticalNiemann Hans Dieter
Priority claimed from EP90114305Aexternal-prioritypatent/EP0410437B1/de
Application grantedgrantedCritical
Publication of ATE96197T1publicationCriticalpatent/ATE96197T1/de