US PATENT SUBCLASS 83 / 698.91
.~.~.~ Tool is single element with continuous cutting edge (e.g., punch, etc.)

Current as of: June, 1999
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83 /   HD   CUTTING

651  DF  TOOL OR TOOL WITH SUPPORT {12}
698.11  DF  .~ Joint or connection {5}
698.71  DF  .~.~ For rectilinearly reciprocating tool {4}
698.91.~.~.~ Tool is single element with continuous cutting edge (e.g., punch, etc.)

DEFINITION

Classification: 83/698.91

Tool is single element with continuous cutting edge (e.g., punch, etc.):

(under subclass 698.71) Joint or connection wherein the tool includes a sharp edge intended to penetrate the workpiece, which sharp edge extends such that it curves back on itself without interruption.

(1) Note. This subclass is limited to patents to a connection for directly attaching a tool to a support.