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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL28233489ApriorityCriticalpatent/PL160572B1/en
Publication of PL282334A1publicationCriticalpatent/PL282334A1/en
Publication of PL160572B1publicationCriticalpatent/PL160572B1/en