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Publication of SU240652A1publicationCriticalpatent/SU240652A1/ru
Application filed by Vni Pk I Metallicheskogo MashfiledCriticalVni Pk I Metallicheskogo Mash
Priority to SU65946863ApriorityCriticalpatent/SU229197A1/ru
Application grantedgrantedCritical
Publication of SU229197A1publicationCriticalpatent/SU229197A1/ru