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Filing date
Publication date
Application filed by Р.Г. Крейнес, Н.Х. Славина, В.П. ЧернышевfiledCriticalР.Г. Крейнес
Priority to SU375645ApriorityCriticalpatent/SU76804A1/en
Application grantedgrantedCritical
Publication of SU76804A1publicationCriticalpatent/SU76804A1/en