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Priority claimed from DE8803475Uexternal-prioritypatent/DE8803475U1/de
Priority claimed from DE8804395Uexternal-prioritypatent/DE8804395U1/de
Application filed by Erwin MaierfiledCriticalErwin Maier
Priority claimed from EP89103346Aexternal-prioritypatent/EP0332906B1/de
Application grantedgrantedCritical
Publication of ATE89405T1publicationCriticalpatent/ATE89405T1/de