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Application grantedgrantedCritical
Publication of SU6075A1publicationCriticalpatent/SU6075A1/en
Application filed by С.В. ГенельfiledCriticalС.В. Генель
Priority to SU10521ApriorityCriticalpatent/SU70700A1/en
Publication of SU70700A1publicationCriticalpatent/SU70700A1/en