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Application filed by Vladimir P Krutikov, Mikhail M Ermakov, Oleg A Romanchuk, Stepan Ya ShatsfiledCriticalVladimir P Krutikov
Priority to SU782592924ApriorityCriticalpatent/SU689902A1/en
Application grantedgrantedCritical
Publication of SU689902A1publicationCriticalpatent/SU689902A1/en