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 Alexi M Ing Sekulov, Primo N Ing Parvanov, Ilinea K Ing Dzonev, Chneisto S Ing Nerestev, Neneexander N Neng Kostov, Vse Volod N Neng Mnenkone, Cneeta A Nenesneneevonene, Tanovskne Vasil M BrafiledCriticalAlexi M Ing Sekulov
Priority to CS811920ApriorityCriticalpatent/CS245255B1/en
Publication of CS192081A1publicationCriticalpatent/CS192081A1/en
Publication of CS245255B1publicationCriticalpatent/CS245255B1/en