US PATENT SUBCLASS 81 / 480
.~.~.~ Axis of connection coaxial to rotational axis of work

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
467  DF  .~ Responsive to torque on work {7}
478  DF  .~.~ Work engaging portion pivotally or rotatably connected to handle {3}
480.~.~.~ Axis of connection coaxial to rotational axis of work {2}
481  DF  .~.~.~.~> With arm extending from portion
482  DF  .~.~.~.~> With pivoted locking pawl

DEFINITION

Classification: 81/480

Axis of connection coaxial to rotational axis of work:

(under subclass 478) Wrench or screwdriver in which the pivotal or rotational axis of the connection is coaxial with the axis about which the work turns.