US PATENT SUBCLASS 72 / 224
.~ Included in roller-cluster

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}
224.~ Included in roller-cluster {1}
225  DF  .~.~> Comprising diverse roller-pairs

DEFINITION

Classification: 72/224

Included in roller cluster:

(under subclass 199) Subject matter including three or more cooperating rollers that form a roller-cluster*.

(1) Note. See the search note under the definition of subclass 100 for a locus of disclosures involving use of a roller cluster or a tool cluster.