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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL20895378ApriorityCriticalpatent/PL116894B2/pl
Publication of PL208953A1publicationCriticalpatent/PL208953A1/pl
Publication of PL116894B2publicationCriticalpatent/PL116894B2/pl