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 Boguslav Mgr Ing Buszewski, Berek Dusan, Novak Ivan, Garaj JanfiledCriticalBoguslav Mgr Ing Buszewski
Priority to CS849776ApriorityCriticalpatent/CS241346B1/en
Publication of CS977684A1publicationCriticalpatent/CS977684A1/en
Publication of CS241346B1publicationCriticalpatent/CS241346B1/en