US PATENT SUBCLASS 81 / 176
.~.~.~.~ Shank rack

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
129  DF  .~ Slidable jaw adjustments {3}
155  DF  .~.~ Thread {10}
175  DF  .~.~.~ Traveling and rotating screw {1}
176.~.~.~.~ Shank rack

DEFINITION

Classification: 81/176

The actuating screw travels with the sliding part and cooperates with rack-like threads upon the shank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152, and 162.