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Application filed by Akad Gorniczo HutniczafiledCriticalAkad Gorniczo Hutnicza
Priority to PL26992587ApriorityCriticalpatent/PL154765B1/en
Publication of PL269925A1publicationCriticalpatent/PL269925A1/en
Publication of PL154765B1publicationCriticalpatent/PL154765B1/en