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
Priority claimed from SU1642931Aexternal-prioritypatent/SU355867A1/ru
Application filedfiledCritical
Priority to SU1642931ApriorityCriticalpatent/SU355867A1/ru
Application grantedgrantedCritical
Publication of SU355867A2publicationCriticalpatent/SU355867A2/ru
Publication of SU355867A1publicationCriticalpatent/SU355867A1/ru