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Application filed by A P Mikhalkin, Yu M Smirnov, I Ya Kholomyanskij, V S Boldin, I S Selivanova, A S Badrian, D Yu Brodskij, I P Rovnyakova, M I FolkovichfiledCriticalA P Mikhalkin
Priority to SU833650541ApriorityCriticalpatent/SU1148159A1/en
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Publication of SU1148159A1publicationCriticalpatent/SU1148159A1/en