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Application filed by Н.Н. Голованов, С.В. Руссьян, н С.В. Руссь, И.Г. СоколовfiledCriticalН.Н. Голованов
Priority to SU399177ApriorityCriticalpatent/SU84900A1/ru
Application grantedgrantedCritical
Publication of SU84900A1publicationCriticalpatent/SU84900A1/ru