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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL21029978ApriorityCriticalpatent/PL116110B1/pl
Publication of PL210299A1publicationCriticalpatent/PL210299A1/pl
Publication of PL116110B1publicationCriticalpatent/PL116110B1/pl