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Application filed by К.Н. Оселедько, А.П. СколдиновfiledCriticalК.Н. Оселедько
Priority to SU5071ApriorityCriticalpatent/SU66825A1/ru
Application grantedgrantedCritical
Publication of SU66825A1publicationCriticalpatent/SU66825A1/ru