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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL24776584ApriorityCriticalpatent/PL137558B2/en
Publication of PL247765A2publicationCriticalpatent/PL247765A2/en
Publication of PL137558B2publicationCriticalpatent/PL137558B2/en