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Application filed by Иван Федорович СидоркинfiledCriticalИван Федорович Сидоркин
Priority to SU1738433ApriorityCriticalpatent/SU445807A1/en
Priority claimed from SU1738433Aexternal-prioritypatent/SU445807A1/en
Application grantedgrantedCritical
Publication of SU445807A2publicationCriticalpatent/SU445807A2/en
Publication of SU445807A1publicationCriticalpatent/SU445807A1/en