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Application filed by Hoffmann Evzen, Janousek Josef, Petr Canda, Karel KuncefiledCriticalHoffmann Evzen
Priority to CS885780ApriorityCriticalpatent/CS266698B1/en
Publication of CS578088A1publicationCriticalpatent/CS578088A1/en
Publication of CS266698B1publicationCriticalpatent/CS266698B1/en