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 Ustav Materialov A Mechaniky SfiledCriticalUstav Materialov A Mechaniky S
Priority to CS906746ApriorityCriticalpatent/CS276215B6/en
Publication of CS674690A3publicationCriticalpatent/CS674690A3/en
Publication of CS276215B6publicationCriticalpatent/CS276215B6/en