US PATENT SUBCLASS 219 / 146.21
.~.~ Nonconsumable

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
146.1  DF  .~ Weld rod composition {6}
146.21.~.~ Nonconsumable

DEFINITION

Classification: 219/146.21

Nonconsumable:

(under subclass 146.1) Subject matter wherein the material of the arc electrode is of a nonfiller material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

145.1, for structure of nonconsumable electrodes.