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Application filed by V A Belotelov, A Ya Svarovskij, E A NenarokomovfiledCriticalV A Belotelov
Priority to SU864079457ApriorityCriticalpatent/SU1367219A1/en
Application grantedgrantedCritical
Publication of SU1367219A1publicationCriticalpatent/SU1367219A1/en