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Application filed by Ladislav Olsan, Miroslav Balek, Jaroslav Sedivy, Milan Ing Dubsky, Kucera Frantisek, Jaroslav Ing Cermak, Zdenek Ing Potocka, Josef KoutnyfiledCriticalLadislav Olsan
Priority to CS875690ApriorityCriticalpatent/CS265968B1/en
Publication of CS569087A1publicationCriticalpatent/CS569087A1/en
Publication of CS265968B1publicationCriticalpatent/CS265968B1/en