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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL19949777ApriorityCriticalpatent/PL109006B1/pl
Publication of PL199497A1publicationCriticalpatent/PL199497A1/pl
Publication of PL109006B1publicationCriticalpatent/PL109006B1/pl