US PATENT SUBCLASS 292 / 256.67
.~.~.~ Screw

Current as of: June, 1999
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292 /   HD   CLOSURE FASTENERS

256  DF  CLAMPS {6}
256.6  DF  .~ Ring {3}
256.65  DF  .~.~ With expanding or contracting means {2}
256.67.~.~.~ Screw

DEFINITION

Classification: 292/256.67

(under subclass 256.65) Devices in the form of screw threaded means.