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Application filed by Е.Г. ГубкоfiledCriticalЕ.Г. Губко
Priority to SU387205ApriorityCriticalpatent/SU81005A1/ru
Priority claimed from SU387205Aexternal-prioritypatent/SU81005A1/ru
Publication of SU77064A1publicationCriticalpatent/SU77064A1/ru
Application grantedgrantedCritical
Publication of SU81005A1publicationCriticalpatent/SU81005A1/ru