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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Application filed by М.С. Артемьев, А.А. ГолубковfiledCriticalМ.С. Артемьев
Priority to SU90245ApriorityCriticalpatent/SU27983A1/ru
Application grantedgrantedCritical
Publication of SU27983A1publicationCriticalpatent/SU27983A1/ru