US PATENT SUBCLASS 411 / 213
.~.~.~.~ Comprising an elongated element divided longitudinally (e.g., a cotter pin)

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

190  DF  HAVING STRUCTURE TO RESTRICT ROTATION OF THREADED, MATING PIECES (E.G., NUT LOCK) {13}
204  DF  .~ Structure is coaxial, distinct member (e.g., washer, key, or nut portion) that restricts nut piece {7}
209  DF  .~.~ Member includes key, screw, tongue, etc. perpendicular to threads {2}
212  DF  .~.~.~ Including plastically deformable portion {1}
213.~.~.~.~ Comprising an elongated element divided longitudinally (e.g., a cotter pin)

DEFINITION

Classification: 411/213

Comprising an elongated element divided longitudinally (e.g., a cotter pin):

(under subclass 212) Device wherein the element is in the nature of a pin and is split along its longitudinal axis through a substantial portion of its length.