US PATENT SUBCLASS 72 / 342.96
.~.~ By passing electric current through work

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

342.1  DF  WITH TEMPERATURE MODIFICATION OF TOOL OR OF SPECIFIED PORTION OF WORK {3}
342.94  DF  .~ Distinct temperature modifications at distinct locations of workpiece {1}
342.96.~.~ By passing electric current through work

DEFINITION

Classification: 72/342.96

By passing electric current through work:

(under subclass 342.94) Subject matter including provision to pass electricity through the workpiece, to utilize the electrical resistance of the work to effect heating.