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Priority claimed from SU1853938Aexternal-prioritypatent/SU436786A1/ru
Priority claimed from SU1856935Aexternal-prioritypatent/SU456482A1/ru
Application filed by A G Yaure, A I Granovsky, V N Ivanov, A S Zaidman, I V Samshilin, F E MikushevichfiledCriticalA G Yaure
Publication of IN143375BpublicationCriticalpatent/IN143375B/en