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 Valentin S Markov, Vilnis J AuzinfiledCriticalValentin S Markov
Priority to CS83338ApriorityCriticalpatent/CS245297B1/en
Publication of CS33883A1publicationCriticalpatent/CS33883A1/en
Publication of CS245297B1publicationCriticalpatent/CS245297B1/en