US PATENT SUBCLASS 219 / 121.46
.~.~.~.~ Methods

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}
121.36  DF  .~.~ Using plasma {8}
121.45  DF  .~.~.~ Welding {1}
121.46.~.~.~.~ Methods

DEFINITION

Classification: 219/121.46

Method:

(under subclass 121.45) Subject matter relating to processes of fusing workpieces by a plasma gas from a torch.