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 Antonin Kralik, Jaroslav Havlicek, Jaroslav Divoky, Pavel FajtfiledCriticalAntonin Kralik
Priority to CS409876ApriorityCriticalpatent/CS183446B1/en
Publication of CS183446B1publicationCriticalpatent/CS183446B1/en