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Application filed by Anatolij K Kultygin, Varies Nina, Anatolij N StepanovfiledCriticalAnatolij K Kultygin
Priority to SU833585947ApriorityCriticalpatent/SU1157688A1/en
Application grantedgrantedCritical
Publication of SU1157688A1publicationCriticalpatent/SU1157688A1/en