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 Blaha Jaroslav, Rejha Bohumil, Zdena BerkovafiledCriticalBlaha Jaroslav
Priority to CS88464ApriorityCriticalpatent/CS266879B1/en
Publication of CS46488A1publicationCriticalpatent/CS46488A1/en
Publication of CS266879B1publicationCriticalpatent/CS266879B1/en