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Application filed by Н.А. Барбинов, Л.Н. ДедичfiledCriticalН.А. Барбинов
Priority to SU71676ApriorityCriticalpatent/SU21093A1/en
Application grantedgrantedCritical
Publication of SU21093A1publicationCriticalpatent/SU21093A1/en