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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL19934877ApriorityCriticalpatent/PL109135B1/pl
Publication of PL199348A1publicationCriticalpatent/PL199348A1/pl
Publication of PL109135B1publicationCriticalpatent/PL109135B1/pl