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.О. Мильков, А.Е. СегалевичfiledCriticalВ.О. Мильков
Priority to SU1146ApriorityCriticalpatent/SU76908A1/en
Application grantedgrantedCritical
Publication of SU76908A1publicationCriticalpatent/SU76908A1/en