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Application filed by Zaklady Elektrod Weglowych 1 MfiledCriticalZaklady Elektrod Weglowych 1 M
Priority to PL23798482ApriorityCriticalpatent/PL128947B2/en
Publication of PL237984A2publicationCriticalpatent/PL237984A2/en
Publication of PL128947B2publicationCriticalpatent/PL128947B2/en