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VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT PO STROITELSTVU MAGISTRALNYK H TRUBOPROVODOV "VNIIST"
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VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT PO STROITELSTVU MAGISTRALNYK H TRUBOPROVODOV "VNIIST"
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Priority to CA137371ApriorityCriticalpatent/CA936238A/en
Application grantedgrantedCritical
Publication of CA936238ApublicationCriticalpatent/CA936238A/en