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 Pudil Frantisek, Jiri KovarfiledCriticalPudil Frantisek
Priority to CS837163ApriorityCriticalpatent/CS235890B1/en
Publication of CS716383A1publicationCriticalpatent/CS716383A1/en
Publication of CS235890B1publicationCriticalpatent/CS235890B1/en