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Application filed by Багдадьян, н Багдадь, Г.Н. ГуковfiledCriticalБагдадьян
Priority to SU154282ApriorityCriticalpatent/SU41932A1/en
Application grantedgrantedCritical
Publication of SU41932A1publicationCriticalpatent/SU41932A1/en