US PATENT SUBCLASS 72 / 252.5
.~ Roller or roller-like tool-element of particular configuration

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}
252.5.~ Roller or roller-like tool-element of particular configuration

DEFINITION

Classification: 72/252.5

Roller or roller-like tool-element of particular configuration:

(under subclass 199) Subject matter wherein the tool-element is of a specified or irregular physical shape.