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 Jan Kudelka, Svatopluk FibrichfiledCriticalJan Kudelka
Priority to CS846960ApriorityCriticalpatent/CS245931B1/cs
Publication of CS696084A1publicationCriticalpatent/CS696084A1/cs
Publication of CS245931B1publicationCriticalpatent/CS245931B1/cs