US PATENT SUBCLASS 81 / 176.15
.~.~ Having means to engage work axially

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
176.1  DF  .~ Spanner {2}
176.15.~.~ Having means to engage work axially {1}
176.2  DF  .~.~.~> And means to engage peripheral face of work

DEFINITION

Classification: 81/176.15

Having means to engage work axially:

(under subclass 176.1) Wrench wherein the work engaging projection or recess extends along the axis about which the twisting strain is applied to the work.