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Application filed by Alexandru Cralov, Ladislau Frekko, Ioan Oltean, Iuliu BarcafiledCriticalAlexandru Cralov
Priority to RO109617ApriorityCriticalpatent/RO86838B1/ro
Publication of RO86838A2publicationCriticalpatent/RO86838A2/fr
Publication of RO86838B1publicationCriticalpatent/RO86838B1/ro
Processo de sintese de compostos binarios de enxofre,composto sulfurado de terras raras,mistura de compostos sulfurados,sesquissulfetos de terras raras e sulfeto de metal de transicao