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 Liska Frantisek, Fikar Jiri, Vaclav Prof In Csc Dedek, Rousar IvofiledCriticalLiska Frantisek
Priority to CS865052ApriorityCriticalpatent/CS257236B1/en
Publication of CS505286A1publicationCriticalpatent/CS505286A1/en
Publication of CS257236B1publicationCriticalpatent/CS257236B1/en