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Application filed by B F Filimonov, B V Suvorov, N I Gusar, A S Bryzh, I M Chmyr, N R Bukejkhanov, Zh S KuprinafiledCriticalB F Filimonov
Priority to SU752128218ApriorityCriticalpatent/SU523616A1/ru
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Publication of SU523616A1publicationCriticalpatent/SU523616A1/ru