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Application filed by Г.А. Зеятленок, тленок Г.А. ЗеfiledCriticalГ.А. Зеятленок
Priority to SU132910ApriorityCriticalpatent/SU37159A1/ru
Application grantedgrantedCritical
Publication of SU37159A1publicationCriticalpatent/SU37159A1/ru