US PATENT SUBCLASS 81 / 429
.~ Responsive to movement of work

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
429.~ Responsive to movement of work

DEFINITION

Classification: 81/429

Responsive to movement of work:

(under subclass 53) Wrench or screwdriver wherein the operation of the wrench or screwdriver is stopped or it signals when either the distance traveled by or the number of rotations of the work exceed a selected amount.