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Application filed by Hajek Karel, Svoboda Bohumil, Hires Jaroslav, Jiri Ing Husak, Kratky Bohumil, Zdenek Ing Csc VasicekfiledCriticalHajek Karel
Priority to CS831776ApriorityCriticalpatent/CS230800B1/en
Publication of CS177683A1publicationCriticalpatent/CS177683A1/en
Publication of CS230800B1publicationCriticalpatent/CS230800B1/en