US PATENT SUBCLASS 81 / 433
.~.~.~ Including revolvably driven work contacting member

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
54  DF  .~ Machine {10}
57.37  DF  .~.~ With feed or magazine means {6}
433.~.~.~ Including revolvably driven work contacting member

DEFINITION

Classification: 81/433

Including revolvably driven work contacting member:

(under subclass 57.37) Feed or storing means including a work-contacting member which is revolved 360 deg. around a central area when work pieces are conveyed to the work-engaging and strain-exerting portion of the wrench or screwdriver.