US PATENT SUBCLASS 81 / 476
.~.~.~ Having friction type contact surfaces

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}
473  DF  .~.~ Rotatable, coaxial, clutching components {3}
476.~.~.~ Having friction type contact surfaces

DEFINITION

Classification: 81/476

Having friction type contact surfaces:

(under subclass 473) Wrench or screwdriver wherein the surface friction created by the contact of the coacting surface is solely relied upon for the transmitting of rotary motion from one component to the other.