US PATENT SUBCLASS 72 / 202
.~.~ By means (other than a tool) modifying temperature of work

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

199  DF  BY USE OF ROLLER OR ROLLER-LIKE TOOL-ELEMENT {17}
200  DF  .~ With modification or control of temperature of work, tool or machine {2}
202.~.~ By means (other than a tool) modifying temperature of work

DEFINITION

Classification: 72/202

By means (other than a tool) modifying temperature of work:

(under subclass 200) Subject matter wherein the changing or regulating of the degree heat content is performed by something that is not a deforming tool.