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Application filed by Uralsky Inst Chernykh Metall, Perm Polt IfiledCriticalUralsky Inst Chernykh Metall
Priority to FI863619ApriorityCriticalpatent/FI78278C/en
Publication of FI863619A0publicationCriticalpatent/FI863619A0/en
Publication of FI863619ApublicationCriticalpatent/FI863619A/en
Application grantedgrantedCritical
Publication of FI78278BpublicationCriticalpatent/FI78278B/en
Publication of FI78278CpublicationCriticalpatent/FI78278C/en