US PATENT SUBCLASS 411 / 293
.~.~.~ Having a toothed surface

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}
259  DF  .~ Comprising a thread lock {18}
292  DF  .~.~ Including a longitudinal locking member {1}
293.~.~.~ Having a toothed surface

DEFINITION

Classification: 411/293

Having a toothed surface:

(under subclass 292) Device wherein that portion of the key which engages the threads is formed with protuberance means.

(1) Note. The protuberance means may either mate with or

bite into the threads.