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Priority claimed from CH338185Aexternal-prioritypatent/CH667064A5/de
Priority claimed from CH453985Aexternal-prioritypatent/CH667865A5/de
Application filed by Hans SieberfiledCriticalHans Sieber
Priority claimed from EP19860810314external-prioritypatent/EP0213070B1/de
Application grantedgrantedCritical
Publication of ATE39341T1publicationCriticalpatent/ATE39341T1/de