Machines for electro-inductively heating of metallic workpieces being parts of metal working machines; electric machines for welding of metallic components; induction heating machines for metallic surfaces being parts of metal working machines; apparatus for hardening surfaces of workpieces made of metal, namely, metal casting machines; apparatus for the electrochemical machining of metals, namely, electro-chemical machine tools for metalworking; electroinduction apparatus for electromagnetic...

Stationary and Mobile Electrical Resistance and Induction Equipment Used for Heating Metallic and Non-Metallic Materials, Inductively Heat-Treating Metallic Objects of All Types, Equipment Used in Machining Metal by Means of Spark Erosion, Electrical Melting and Heating Furnaces, Equipment for Heating with Infra-Red Radiation, and Frequency Multipliers