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Application filed by Kopalnia Wegla Kamiennego NowyfiledCriticalKopalnia Wegla Kamiennego Nowy
Priority to PL19630577ApriorityCriticalpatent/PL103937B1/pl
Publication of PL196305A1publicationCriticalpatent/PL196305A1/pl
Publication of PL103937B1publicationCriticalpatent/PL103937B1/pl