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Application filed by Instytut Materiałów OgniotrwałychfiledCriticalInstytut Materiałów Ogniotrwałych
Priority to PL358442ApriorityCriticalpatent/PL200727B1/en
Publication of PL358442A1publicationCriticalpatent/PL358442A1/en
Publication of PL200727B1publicationCriticalpatent/PL200727B1/en