US PATENT SUBCLASS 72 / 289
.~.~ Rotating a drum, roll, sheave, etc.

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

274  DF  BY PULLING WORKPIECE THROUGH CLOSED PERIPHERY DIE (E.G., ROD-, TUBE-, OR WIRE-DRAWING) {8}
287  DF  .~ Utilizing specified work moving means {4}
289.~.~ Rotating a drum, roll, sheave, etc.

DEFINITION

Classification: 72/289

Rotating a drum, roll, sheave, etc.:

(under subclass 287) Subject matter including a driven rotating element which engages the workpiece and moves it by winding it around the rotating element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278+, for plural metal-deforming tools, one of which may include a drum die combination.