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-1851filedCriticalПредприятие П/Я А-1851
Priority to SU721745658ApriorityCriticalpatent/SU630590A1/en
Application grantedgrantedCritical
Publication of SU630590A1publicationCriticalpatent/SU630590A1/en