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Application filed by Nemecek Miloslav, Jares Frantisek, Karel Marek, Karel CervenkafiledCriticalNemecek Miloslav
Priority to CS873142ApriorityCriticalpatent/CS267892B1/en
Publication of CS314287A1publicationCriticalpatent/CS314287A1/en
Publication of CS267892B1publicationCriticalpatent/CS267892B1/en