Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vyzk Ustav Chem VlakenfiledCriticalVyzk Ustav Chem Vlaken
Priority to SK667889ApriorityCriticalpatent/SK277696B6/en
Priority to CS667889prioritypatent/CZ277694B6/en
Publication of CS8906678A2publicationCriticalpatent/CS8906678A2/en
Publication of CZ277694B6publicationCriticalpatent/CZ277694B6/en