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Application filed by Hajicek Josef, Hrbata Jiri, Sturc Antonin, Pavel Pihera, Ladislav Strojil, Jiri KrepelkafiledCriticalHajicek Josef
Priority to CS886942ApriorityCriticalpatent/CS272434B1/en
Publication of CS694288A1publicationCriticalpatent/CS694288A1/en
Publication of CS272434B1publicationCriticalpatent/CS272434B1/en