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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL19598477ApriorityCriticalpatent/PL114147B1/en
Publication of PL195984A1publicationCriticalpatent/PL195984A1/en
Publication of PL114147B1publicationCriticalpatent/PL114147B1/en