US PATENT SUBCLASS 81 / 471
.~.~ Permanently deformable component

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
467  DF  .~ Responsive to torque on work {7}
471.~.~ Permanently deformable component

DEFINITION

Classification: 81/471

Permanently deformable component:

(under subclass 467) Wrench or screwdriver having at least one force-transmitting component constructed from material which is permanently deformed if the work has more than the selected amount of torque applied thereto.