US PATENT SUBCLASS 219 / 146.51
.~.~.~ Containing carbide

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}
146.31  DF  .~.~ Particulate {3}
146.51.~.~.~ Containing carbide

DEFINITION

Classification: 219/146.51

Containing carbide:

(under subclass 146.31) Subject matter wherein at least part of the granular material is a carbide.