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 П.Ц. Боженов, Л.П. ПолетухинfiledCriticalП.Ц. Боженов
Priority to SU3738ApriorityCriticalpatent/SU82536A1/en
Priority claimed from SU3738Aexternal-prioritypatent/SU82536A1/en
Application grantedgrantedCritical
Publication of SU73934A2publicationCriticalpatent/SU73934A2/en
Publication of SU82536A1publicationCriticalpatent/SU82536A1/en