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Application filed by Augustin Frey, Exner Milan, Jiri Lode, Kult Jaroslav, Jan Jakes, Oldrich RybarfiledCriticalAugustin Frey
Priority to CS888793ApriorityCriticalpatent/CS270629B1/en
Publication of CS879388A1publicationCriticalpatent/CS879388A1/en
Publication of CS270629B1publicationCriticalpatent/CS270629B1/en