US PATENT SUBCLASS 72 / 342.3
.~.~ Of tool

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}
342.2  DF  .~ Cooling {2}
342.3.~.~ Of tool {1}
342.4  DF  .~.~.~> And heating of tool

DEFINITION

Classification: 72/342.3

Of tool:

(under subclass 342.2) Subject matter comprising means for or a step of localized cooling of a tool* of a metal deforming device.