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Application filed by Główny Instytut GórnictwafiledCriticalGłówny Instytut Górnictwa
Priority to PL380349ApriorityCriticalpatent/PL207451B1/pl
Publication of PL380349A1publicationCriticalpatent/PL380349A1/pl
Publication of PL207451B1publicationCriticalpatent/PL207451B1/pl