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 В. И. Сбитнев, Н. И. ЧередниченкоfiledCriticalВ. И. Сбитнев
Priority to SU1831831ApriorityCriticalpatent/SU419993A1/ru
Priority claimed from SU1831831Aexternal-prioritypatent/SU419993A1/ru
Application grantedgrantedCritical
Publication of SU419993A2publicationCriticalpatent/SU419993A2/ru
Publication of SU419993A1publicationCriticalpatent/SU419993A1/ru