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Application filed by Jan Pastirik, Rudolf Kubis, Jindrich BlazekfiledCriticalJan Pastirik
Priority to CS865900ApriorityCriticalpatent/CS260291B1/en
Publication of CS590086A1publicationCriticalpatent/CS590086A1/en
Publication of CS260291B1publicationCriticalpatent/CS260291B1/en