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 А.М. КвартальновfiledCriticalА.М. Квартальнов
Priority to SU126385ApriorityCriticalpatent/SU37288A1/en
Application grantedgrantedCritical
Publication of SU37288A1publicationCriticalpatent/SU37288A1/en