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Application filed by Jiri Kepl, Vaclav Lopata, Jaroslav Haumer, Karel Prochazka, Karel Kaufman, Miloslav Vodicka, Josef Lhotan, Zdenek TaborskyfiledCriticalJiri Kepl
Priority to CS882423ApriorityCriticalpatent/CS267409B1/en
Publication of CS242388A1publicationCriticalpatent/CS242388A1/en
Publication of CS267409B1publicationCriticalpatent/CS267409B1/en