US PATENT SUBCLASS 81 / 162
.~.~.~.~ Traveling screw, 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}
159  DF  .~.~.~ Interrupted {2}
162.~.~.~.~ Traveling screw, shank rack

DEFINITION

Classification: 81/162

An externally-threaded device secured to the traveling jaw is operated in connection with rack-like threads on the shank of the fixed jaw.

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37, and 176.