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 Ц.Б. ПотынскийfiledCriticalЦ.Б. Потынский
Priority to SU78274ApriorityCriticalpatent/SU931A1/ru
Application grantedgrantedCritical
Publication of SU931A1publicationCriticalpatent/SU931A1/ru