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
Publication of SU367473A1publicationCriticalpatent/SU367473A1/ru
Priority claimed from SU1633556Aexternal-prioritypatent/SU367473A1/ru
Application filedfiledCritical
Priority to SU1633556ApriorityCriticalpatent/SU367473A1/ru
Application grantedgrantedCritical
Publication of SU367473A2publicationCriticalpatent/SU367473A2/ru