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Application filed by А.Ю. Ковв, Н.Н. ЩелонинfiledCriticalА.Ю. Ковв
Priority to SU82463ApriorityCriticalpatent/SU27350A1/ru
Application grantedgrantedCritical
Publication of SU27350A1publicationCriticalpatent/SU27350A1/ru