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Application filed by Valentin M Colov, Nikolajj A Jjosifov, Todor L Todorov, Emil L Stoilov, Jjordan M Jjotov, Svetoslav A Ivanov, Valentin Z Solajj, Dimit R I GvozdekovfiledCriticalValentin M Colov
Priority to BG8225487ApriorityCriticalpatent/BG44930A1/xx
Publication of BG44930A1publicationCriticalpatent/BG44930A1/xx