US PATENT SUBCLASS 81 / 171
.~.~.~.~ Bracket-bearing

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}
170  DF  .~.~.~ Nontraveling rotatable screw {2}
171.~.~.~.~ Bracket-bearing

DEFINITION

Classification: 81/171

The screw has its bearing in or on a bracket, usually on or a part of the upper end of the handle proper.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93, where the screw is used as the fulcrum of an inner jaw.