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Application filed by Kopalnia Wegla Kamiennego BarbfiledCriticalKopalnia Wegla Kamiennego Barb
Priority to PL19132476ApriorityCriticalpatent/PL105512B1/pl
Publication of PL191324A1publicationCriticalpatent/PL191324A1/pl
Publication of PL105512B1publicationCriticalpatent/PL105512B1/pl