US PATENT SUBCLASS 219 / 133
.~.~.~ With generator (e.g., gas engine driven)

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}
130.1  DF  .~.~ Including arc-power supplies {5}
133.~.~.~ With generator (e.g., gas engine driven) {1}
134  DF  .~.~.~.~> Electric motor driven

DEFINITION

Classification: 219/133

(under subclass 130.1) Subject matter having a generator for generating the current used in the electric arc.

(1) Note. The generator, for example, may be driven by a prime mover.

SEE OR SEARCH CLASS

290, Prime-Mover Dynamo Plants, appropriate subclasses for engine driven generator systems.