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 Kosta P Atanasov, Kol O G Todorov, Pet R S PetrovfiledCriticalKosta P Atanasov
Priority to BG7859187ApriorityCriticalpatent/BG43411A1/en
Publication of BG43411A1publicationCriticalpatent/BG43411A1/en