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Application filed by Kopalnia Wegla Kamiennego JawofiledCriticalKopalnia Wegla Kamiennego Jawo
Priority to PL24377683ApriorityCriticalpatent/PL142535B1/en
Publication of PL243776A1publicationCriticalpatent/PL243776A1/en
Publication of PL142535B1publicationCriticalpatent/PL142535B1/en