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 К.В. РослановfiledCriticalК.В. Росланов
Priority to SU377050ApriorityCriticalpatent/SU78143A1/en
Application grantedgrantedCritical
Publication of SU78143A1publicationCriticalpatent/SU78143A1/en