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Application filed by V M Shumilin, P A Novysh, G Yu TugushevfiledCriticalV M Shumilin
Priority to SU823465374ApriorityCriticalpatent/RU1152430C/ru
Application grantedgrantedCritical
Publication of RU1152430CpublicationCriticalpatent/RU1152430C/ru