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 Frantisek Kula, Moravec Jaroslav, Trojan VaclavfiledCriticalFrantisek Kula
Priority to CS878622ApriorityCriticalpatent/CS265861B1/en
Publication of CS862287A1publicationCriticalpatent/CS862287A1/en
Publication of CS265861B1publicationCriticalpatent/CS265861B1/en