US PATENT SUBCLASS 81 / 163
.~.~.~ Right and left threads


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}
163.~.~.~ Right and left threads


DEFINITION

Classification: 81/163

The sliding part or parts are adjusted by the actuation of a device having right and left threads.

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