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Application filed by Kopalnia Wegla Kamiennego MoszfiledCriticalKopalnia Wegla Kamiennego Mosz
Priority to PL19636777ApriorityCriticalpatent/PL109000B1/pl
Publication of PL196367A1publicationCriticalpatent/PL196367A1/pl
Publication of PL109000B1publicationCriticalpatent/PL109000B1/pl