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Application filed by Przed Materialow OgniotrwalychfiledCriticalPrzed Materialow Ogniotrwalych
Priority to PL30405094ApriorityCriticalpatent/PL172270B1/en
Publication of PL304050A1publicationCriticalpatent/PL304050A1/en
Publication of PL172270B1publicationCriticalpatent/PL172270B1/en