US PATENT SUBCLASS 411 / 335
.~.~.~ Of an internally threaded element

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}
333  DF  .~ By deformation of a threaded element {1}
334  DF  .~.~ Plastic deformation {1}
335.~.~.~ Of an internally threaded element {1}
336  DF  .~.~.~.~> Into an interruption in the thread of the externally threaded element associated therewith

DEFINITION

Classification: 411/335

Of an internally threaded element:

(under subclass 334) Device wherein the threaded element is one which is threaded internally.