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Application filed by Kopalnia Wegla Kamiennego BarbfiledCriticalKopalnia Wegla Kamiennego Barb
Priority to PL20014977ApriorityCriticalpatent/PL115080B1/pl
Publication of PL200149A1publicationCriticalpatent/PL200149A1/pl
Publication of PL115080B1publicationCriticalpatent/PL115080B1/pl