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Priority claimed from EP91810720Aexternal-prioritypatent/EP0530428B1/en
Application filed by Scheiwiller Rolf, Ren ScheiwillerfiledCriticalScheiwiller Rolf
Publication of PL295835A1publicationCriticalpatent/PL295835A1/en
Publication of PL169711B1publicationCriticalpatent/PL169711B1/en