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Application filed by Я.С. Иоффе, С.Б. ШапироfiledCriticalЯ.С. Иоффе
Priority to SU5275ApriorityCriticalpatent/SU68314A1/en
Application grantedgrantedCritical
Publication of SU68314A1publicationCriticalpatent/SU68314A1/en