US PATENT SUBCLASS 219 / 123
.~.~.~ Magnetic

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
121.11  DF  .~ By arc {16}
122  DF  .~.~ Control of arc direction {1}
123.~.~.~ Magnetic

DEFINITION

Classification: 219/123

(under subclass 122) Subject matter in which the means for controlling the course of the arc is a magnetic means.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

153+, for this subject matter, not utilized for metal heating, and consult the search notes thereto for related art.