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.Г. ЮминовfiledCriticalВ.Г. Юминов
Priority to SU1993881/06ApriorityCriticalpatent/RU485657C/ru
Priority claimed from SU1993881/06Aexternal-prioritypatent/RU485657C/ru
Application grantedgrantedCritical
Publication of SU485657A1publicationCriticalpatent/SU485657A1/ru
Publication of RU485657CpublicationCriticalpatent/RU485657C/ru