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2. Japan Patent No. 10611, 10A7422, "Local treatment of material using electrolytic heating."
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4. Inventor's Certificate No. 457742, MKI S 21 d 1/44, "Apparatus for the electrolytic heating of conducting articles."
5. T. Josinori, "Electrolytic quenching," Kikai Gidzyutsu,25, No. 8, 116?117 (1977).