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 Рихе А., Гнюхтель А., Майер-Боде Г.filedCriticalРихе А.
Priority to SU401233ApriorityCriticalpatent/SU92922A1/en
Application grantedgrantedCritical
Publication of SU92922A1publicationCriticalpatent/SU92922A1/en