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 Gumarenske A PlastfiledCriticalVyzk Ustav Gumarenske A Plast
Priority to CS68590ApriorityCriticalpatent/CS275811B6/en
Publication of CS9000685A2publicationCriticalpatent/CS9000685A2/en
Publication of CS275811B6publicationCriticalpatent/CS275811B6/en