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 Horyna, Jan Franc, Ivo VahalafiledCriticalJaroslav Horyna
Priority to CS313578ApriorityCriticalpatent/CS194285B1/cs
Publication of CS194285B1publicationCriticalpatent/CS194285B1/cs