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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL20823678ApriorityCriticalpatent/PL113849B1/pl
Publication of PL208236A1publicationCriticalpatent/PL208236A1/pl
Publication of PL113849B1publicationCriticalpatent/PL113849B1/pl