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 Angel N Gushev, Kalina R Gusheva, Stojan P Stojanov, Zdravko G MinchevfiledCriticalAngel N Gushev
Priority to BG6987785ApriorityCriticalpatent/BG43824A1/en
Publication of BG43824A1publicationCriticalpatent/BG43824A1/en