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Application filed by С.М. Леви, А.И. Рыбникова, О.К. СмирновfiledCriticalС.М. Леви
Priority to SU562418ApriorityCriticalpatent/SU108134A1/ru
Application grantedgrantedCritical
Publication of SU108134A1publicationCriticalpatent/SU108134A1/ru