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 Jaroslav KrasnyfiledCriticalJaroslav Krasny
Priority to CS813136ApriorityCriticalpatent/CS231728B1/en
Publication of CS313681A1publicationCriticalpatent/CS313681A1/en
Publication of CS231728B1publicationCriticalpatent/CS231728B1/en