US PATENT SUBCLASS 81 / 53.2
.~ Stud-removal and implacement

Current as of: June, 1999
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52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
53.2.~ Stud-removal and implacement

DEFINITION

Classification: 81/53.2

(under subclass 52) Wrench or screwdriver, especially adapted to extract or drive headless stud bolts.