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Application filed by Glowny Instytut GornictwafiledCriticalGlowny Instytut Gornictwa
Priority to PL21027978ApriorityCriticalpatent/PL114217B1/pl
Publication of PL210279A1publicationCriticalpatent/PL210279A1/pl
Publication of PL114217B1publicationCriticalpatent/PL114217B1/pl