US PATENT SUBCLASS 81 / 472
.~.~ Relatively movable work contacting components

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
467  DF  .~ Responsive to torque on work {7}
472.~.~ Relatively movable work contacting components

DEFINITION

Classification: 81/472

Relatively movable work contacting components:

(under subclass 467) Wrench or screwdriver in which the work-contacting portion includes two or more components which move relative to each other and release the work from driving contact when the selected torque is exceeded.