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Application filed by Kopalnia Wegla Kamiennego PowsfiledCriticalKopalnia Wegla Kamiennego Pows
Priority to PL21007678ApriorityCriticalpatent/PL112728B2/xx
Publication of PL210076A1publicationCriticalpatent/PL210076A1/pl
Publication of PL112728B2publicationCriticalpatent/PL112728B2/xx