US PATENT SUBCLASS 411 / 926
.~ Positive lock

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

924  DF  COUPLED NUT AND BOLT {13}
926.~ Positive lock {2}
927  DF  .~.~> Side
928  DF  .~.~> Thread gripper

DEFINITION

Classification: 411/926

Positive lock:

Art collection under art collection 925 in which the stop prevents rotation of the nut on the bolt by a positive interlocking engagement with the nut.