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Application filed by Kopalnia Wegla Kamiennego BoryfiledCriticalKopalnia Wegla Kamiennego Bory
Priority to PL25543885ApriorityCriticalpatent/PL149301B1/en
Publication of PL255438A1publicationCriticalpatent/PL255438A1/en
Publication of PL149301B1publicationCriticalpatent/PL149301B1/en