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Application filed by Н.А. Мещеряков, ков Н.А. МещерfiledCriticalН.А. Мещеряков
Priority to SU95859ApriorityCriticalpatent/SU27246A1/ru
Application grantedgrantedCritical
Publication of SU27246A1publicationCriticalpatent/SU27246A1/ru