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Application filed by Josef Ing Csc Skala, Stanislav Kratochvil, Zdenek Ing Horn, Karel Ing Csc MatejovicfiledCriticalJosef Ing Csc Skala
Priority to CS857775ApriorityCriticalpatent/CS259305B1/en
Publication of CS777585A1publicationCriticalpatent/CS777585A1/en
Publication of CS259305B1publicationCriticalpatent/CS259305B1/en