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Application filed by Kopalnia Wegla Kamiennego KomufiledCriticalKopalnia Wegla Kamiennego Komu
Priority to PL19986477ApriorityCriticalpatent/PL112052B1/en
Publication of PL199864A1publicationCriticalpatent/PL199864A1/en
Publication of PL112052B1publicationCriticalpatent/PL112052B1/en