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Application filed by Kopalnia Wegla Kamiennego PowsfiledCriticalKopalnia Wegla Kamiennego Pows
Priority to PL20402378ApriorityCriticalpatent/PL112608B2/pl
Publication of PL204023A1publicationCriticalpatent/PL204023A1/pl
Publication of PL112608B2publicationCriticalpatent/PL112608B2/pl