US PATENT SUBCLASS 72 / 476
.~ Having unitary tool-face

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

462  DF  TOOL AND/OR TOOL HOLDER {7}
476.~ Having unitary tool-face {4}
477  DF  .~.~> Including optionally selectable faces
478  DF  .~.~> Comprising plural sections fixed together in use (e.g., adjustable or collapsible)
479  DF  .~.~> With elongated extension fixed to tool face in use (e.g., handle or shank) {1}
481.1  DF  .~.~> With support or holder for adjustable or removable tool face {10}

DEFINITION

Classification: 72/476

Having unitary tool face:

(under subclass 462) Apparatus comprising one tool having at least one work-engaging surface that acts (or reacts) as a single device during deformation.

(1) Note. This and indented subclasses do not bar therefrom a disclosure of a tool having a surface with a plurality of work deforming faces, provided that only one face of such tool is used (at any one period of time) during one deformation, and another face is used during another deformation. See the definitions and notes for subclasses 477 and 478 for such usages.