US PATENT SUBCLASS 219 / 138
.~.~ Electrode holder (e.g., spring biased tong)

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}
138.~.~ Electrode holder (e.g., spring biased tong) {4}
139  DF  .~.~.~> Plural adjustable electrodes (e.g., hand torch)
140  DF  .~.~.~> Spring jaw (e.g., sprung by electrode) {1}
142  DF  .~.~.~> Plunger jaw (e.g., screw actuated) {1}
144  DF  .~.~.~> Positive grip

DEFINITION

Classification: 219/138

(under subclass 121) Subject matter relating to arc electrode holders.

SEE OR SEARCH CLASS

439, Electrical Connectors, appropriate subclasses for the subject matter when not disclosed as useful in electric arc heating of metal. Note especially

241+,.