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 Horek Premysl, Stejskal Miroslav, Zdenek Ing Reman, Cestmir SnobltfiledCriticalHorek Premysl
Priority to CS839928ApriorityCriticalpatent/CS237538B1/en
Publication of CS992883A1publicationCriticalpatent/CS992883A1/en
Publication of CS237538B1publicationCriticalpatent/CS237538B1/en