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 Предприятие П/Я А-1233filedCriticalПредприятие П/Я А-1233
Priority to SU1898511ApriorityCriticalpatent/SU458058A1/ru
Application grantedgrantedCritical
Publication of SU458058A1publicationCriticalpatent/SU458058A1/ru