US PATENT SUBCLASS 72 / 466
.~.~ Flexible or articulated back-up

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

462  DF  TOOL AND/OR TOOL HOLDER {7}
465.1  DF  .~ Including flexible or yieldable tool or support {7}
466.~.~ Flexible or articulated back-up

DEFINITION

Classification: 72/466

Flexible or articulated backup:

(under subclass 465.1) Apparatus wherein the tool operates as a passive reaction member, and wherein the tool or its tool-holder comprises a pliant member or a plurality of elements jointly linked together to permit the elements to move relatively to each other.