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Application filed by Харьковский инженерно-строительный институтfiledCriticalХарьковский инженерно-строительный институт
Priority to SU2008466ApriorityCriticalpatent/SU533394A1/en
Application grantedgrantedCritical
Publication of SU533394A1publicationCriticalpatent/SU533394A1/en