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 Г.Д. Андреевская, Г.Д. Андреевска, А.К. БуровfiledCriticalГ.Д. Андреевская
Priority to SU3615ApriorityCriticalpatent/SU75310A1/en
Application grantedgrantedCritical
Publication of SU75310A1publicationCriticalpatent/SU75310A1/en