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Priority claimed from DE3738811Aexternal-prioritypatent/DE3738811C2/de
Application filed by Duerr Dental Gmbh Co KgfiledCriticalDuerr Dental Gmbh Co Kg
Priority claimed from EP88907035Aexternal-prioritypatent/EP0377594B1/de
Application grantedgrantedCritical
Publication of ATE96639T1publicationCriticalpatent/ATE96639T1/de