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 Ф.И. ТрухановfiledCriticalФ.И. Труханов
Priority to SU115025ApriorityCriticalpatent/SU34609A1/ru
Application grantedgrantedCritical
Publication of SU34609A1publicationCriticalpatent/SU34609A1/ru