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Application filed by Г.В. КарягинfiledCriticalГ.В. Карягин
Priority to SU2666461/06ApriorityCriticalpatent/SU733362A1/ru
Application grantedgrantedCritical
Publication of RU733362CpublicationCriticalpatent/RU733362C/ru
Publication of SU733362A1publicationCriticalpatent/SU733362A1/ru