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Application filed by А.А. Винокуров, Н.М. Владимиров, Н.В. ГольцевfiledCriticalА.А. Винокуров
Priority to SU168463ApriorityCriticalpatent/SU45827A1/en
Application grantedgrantedCritical
Publication of SU45827A1publicationCriticalpatent/SU45827A1/en