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Priority claimed from SU874263106Aexternal-prioritypatent/SU1549622A1/ru
Application filed by Makeevsk Inzh Str IfiledCriticalMakeevsk Inzh Str I
Priority claimed from PCT/SU1987/000116external-prioritypatent/WO1988010159A1/ru
Application grantedgrantedCritical
Publication of ATE73695T1publicationCriticalpatent/ATE73695T1/de