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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL96313149ApriorityCriticalpatent/PL178846B1/en
Publication of PL313149A1publicationCriticalpatent/PL313149A1/en
Publication of PL178846B1publicationCriticalpatent/PL178846B1/en