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Application filed by F K Nabiullin, E M Gertsik, J T Rodionov, V A RabinovichfiledCriticalF K Nabiullin
Priority to DK170976ApriorityCriticalpatent/DK138293B/da
Publication of DK170976ApublicationCriticalpatent/DK170976A/da
Publication of DK138293BpublicationCriticalpatent/DK138293B/da
Application grantedgrantedCritical
Publication of DK138293CpublicationCriticalpatent/DK138293C/da