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 Vyzk Ustav Vodneho HospodafiledCriticalVyzk Ustav Vodneho Hospoda
Priority to CS911748ApriorityCriticalpatent/CS174891A3/en
Publication of CS174891A3publicationCriticalpatent/CS174891A3/en