161641 ⎘
Subject matter not provided for in other groups of this subclass; Heating elements or systems; Electric heating elements or system; Arc heating DC arc heating
DUAL ELECTRODE DC ARC FURNACE
#2Method and device for the continuous production of steel using metal charge material
#3Method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal
#4Process and arrangement for extracting a metal from slag a containing said metal
#5Method and device for the continuous production of steel using metal charge material