US PATENT SUBCLASS 81 / 57.38
.~.~ With tensioning means


Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
54  DF  .~ Machine {10}
57.38.~.~ With tensioning means


DEFINITION

Classification: 81/57.38

(under subclass 54) Wrench or screwdriver provided with means to apply a predetermined tension to the work.