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 Orchideja B Zabunova, Christo B Cvetanov, Ljudmila V Petrova, Vaska A Ognjanova, Milka P Nikolova, Georgi L Tanev, Nedjalka S IvanovafiledCriticalOrchideja B Zabunova
Priority to CS855720ApriorityCriticalpatent/CS268775B1/en
Publication of CS572085A1publicationCriticalpatent/CS572085A1/en
Publication of CS268775B1publicationCriticalpatent/CS268775B1/en