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Application filed by Jan Jakes, Jares Frantisek, Jindrich Ing Drsc Musil, Oldrich Rybar, Exner Milan, Augustin FreyfiledCriticalJan Jakes
Priority to CS835598ApriorityCriticalpatent/CS239277B1/en
Publication of CS559883A1publicationCriticalpatent/CS559883A1/en
Publication of CS239277B1publicationCriticalpatent/CS239277B1/en