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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL20795378ApriorityCriticalpatent/PL113162B1/pl
Publication of PL207953A1publicationCriticalpatent/PL207953A1/pl
Publication of PL113162B1publicationCriticalpatent/PL113162B1/pl