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Application filed by Kopalnia Wegla Kamiennego PokofiledCriticalKopalnia Wegla Kamiennego Poko
Priority to PL19677877ApriorityCriticalpatent/PL111117B2/xx
Publication of PL196778A1publicationCriticalpatent/PL196778A1/pl
Publication of PL111117B2publicationCriticalpatent/PL111117B2/xx