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Application filed by Ogolnopolskie Gwarectwo WeglafiledCriticalOgolnopolskie Gwarectwo Wegla
Priority to PL27164888ApriorityCriticalpatent/PL154095B1/en
Publication of PL271648A1publicationCriticalpatent/PL271648A1/en
Publication of PL154095B1publicationCriticalpatent/PL154095B1/en