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Application grantedgrantedCritical
Publication of SU10287A1publicationCriticalpatent/SU10287A1/ru
Application filed by П.И. Кузнецов, В.А. МаслихинfiledCriticalП.И. Кузнецов
Priority to SU30375ApriorityCriticalpatent/SU60293A1/ru
Priority claimed from SU30375Aexternal-prioritypatent/SU60293A1/ru
Publication of SU60293A1publicationCriticalpatent/SU60293A1/ru