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Publication date
Application filed by В.В. Колесник, Е.С. ОвечкисfiledCriticalВ.В. Колесник
Priority to SU373050ApriorityCriticalpatent/SU76517A1/en
Application grantedgrantedCritical
Publication of SU76517A1publicationCriticalpatent/SU76517A1/en