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Application filed by Nikex Nehezipari KulkerefiledCriticalNikex Nehezipari Kulkere
Publication of BE591228ApublicationCriticalpatent/BE591228A/fr
BE591228A1959-05-261960-05-25Procédé de traitement de matériaux provenant des terrils des houillères, avec extraction simultanée du charbon.
BE591228A
(fr)