US PATENT SUBCLASS 219 / 121.43
.~.~.~.~.~ With chamber

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}
121.39  DF  .~.~.~ Cutting {2}
121.4  DF  .~.~.~.~ Etching {3}
121.43.~.~.~.~.~ With chamber

DEFINITION

Classification: 219/121.43

With chamber:

(under subclass 121.4) Subject matter wherein eroding or abrading of the workpiece is accomplished in an enclosure.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

231.31+, fluid supply with plasma devices.

315, Electric Lamp and Discharge Devices: Systems,

111.21+, for plasma generating systems.