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Application filed by Imrich Vojtko, Ladislav Ing Csc Servatka, Miroslav Ing Talian, Tibor Ing HanzelyfiledCriticalImrich Vojtko
Priority to CS855086ApriorityCriticalpatent/CS264952B1/en
Publication of CS508685A1publicationCriticalpatent/CS508685A1/en
Publication of CS264952B1publicationCriticalpatent/CS264952B1/en