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 Петранка Д. Иванова, Николай Д. Жилков, Стефка З. Кондарева, Георги И. Георгиев, Надежда С. Фачикова, Калинка Н. Пашова-БалтоваfiledCriticalПетранка Д. Иванова
Priority to BG104052UpriorityCriticalpatent/BG516Y1/bg
Publication of BG104052UpublicationCriticalpatent/BG104052U/bg
Publication of BG516Y1publicationCriticalpatent/BG516Y1/bg