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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL24173283ApriorityCriticalpatent/PL139239B1/en
Publication of PL241732A2publicationCriticalpatent/PL241732A2/en
Publication of PL139239B1publicationCriticalpatent/PL139239B1/en