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Application filed by Uhlir Miroslav, Beranek Ivan, Jiri Ing VeselyfiledCriticalUhlir Miroslav
Priority to CS875409ApriorityCriticalpatent/CS268406B1/en
Publication of CS540987A1publicationCriticalpatent/CS540987A1/en
Publication of CS268406B1publicationCriticalpatent/CS268406B1/en