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Application filed by Jan Jakes, Nozicka Zdenek, Ladislav Behounek, Vyskocil JoseffiledCriticalJan Jakes
Priority to CS87471ApriorityCriticalpatent/CS261720B1/en
Publication of CS47187A1publicationCriticalpatent/CS47187A1/en
Publication of CS261720B1publicationCriticalpatent/CS261720B1/en