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Priority claimed from SU833616944Aexternal-prioritypatent/SU1269439A1/en
Application filed by Volgo Ural NipigasfiledCriticalVolgo Ural Nipigas
Priority to DD30060987ApriorityCriticalpatent/DD281715A7/en
Publication of DD281715A7publicationCriticalpatent/DD281715A7/en