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 Horvath Ladislav, Polasek Frantisek, Stulc Petr, Tvrdy MiroslavfiledCriticalHorvath Ladislav
Priority to CS883286ApriorityCriticalpatent/CS272901B1/en
Publication of CS883286A1publicationCriticalpatent/CS883286A1/en
Publication of CS272901B1publicationCriticalpatent/CS272901B1/en