US PATENT SUBCLASS 72 / 475
.~.~.~ Complementary faces

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

462  DF  TOOL AND/OR TOOL HOLDER {7}
470  DF  .~ Including tool couple or die couple (e.g., opposed die faces) {4}
474  DF  .~.~ Having nonsymmetrical faces {1}
475.~.~.~ Complementary faces

DEFINITION

Classification: 72/475

Complementary faces:

(under subclass 474) Apparatus wherein the work-engaging surfaces of the tools conform to each other (with allowance for the presence of uniform-thickness work there-between).

SEE OR SEARCH THIS CLASS, SUBCLASS:

88, 105, 179, 196, 375, 385, 414, and 469, for additional disclosure of tool-couple having complementary tool-faces.