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-1297filedCriticalПредприятие П/Я А-1297
Priority to SU741989886ApriorityCriticalpatent/SU601679A1/en
Application grantedgrantedCritical
Publication of SU601679A1publicationCriticalpatent/SU601679A1/en