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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL21144578ApriorityCriticalpatent/PL116954B1/pl
Publication of PL211445A1publicationCriticalpatent/PL211445A1/pl
Publication of PL116954B1publicationCriticalpatent/PL116954B1/pl