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.)
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Publication date
Application filed by В.В. Каретников, Е.В. КаретниковаfiledCriticalВ.В. Каретников
Priority to SU47198ApriorityCriticalpatent/SU72162A1/ru
Application grantedgrantedCritical
Publication of SU72162A1publicationCriticalpatent/SU72162A1/ru