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Application filed by Samarskij Aviat I Im Akad SpfiledCriticalSamarskij Aviat I Im Akad Sp
Priority to SU4861022priorityCriticalpatent/RU1806889C/en
Application grantedgrantedCritical
Publication of RU1806889CpublicationCriticalpatent/RU1806889C/en