DEVICE FOR EXCAVATING PRODUCT IN UNDERGROUND BREAKAGE FACES von VIRTTS JORG, LETELIER PARGA PABLO ANTONIO, MARTIN GARRI, KARREN'O VALDES KHAJME EHRNAN, TJUMPNER KHANS, KATTKHEFER NORBERT, GAJSTER BJUL'MANN FERNANDO ARTURO, BRJUGGEMANN RAJNKHOL'D, DEL'GADO KHUAN, FISHER FRANK, KHAMMEL' JOKHEN, KHERRMANN FRANK, EHNSINA MONTENEGRO VIKTOR RAUL, KHAN DETLEF

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