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Application filed by Kopalnia Wegla Kamiennego MoszfiledCriticalKopalnia Wegla Kamiennego Mosz
Priority to PL24720484ApriorityCriticalpatent/PL145621B1/en
Publication of PL247204A1publicationCriticalpatent/PL247204A1/en
Publication of PL145621B1publicationCriticalpatent/PL145621B1/en