US PATENT SUBCLASS 411 / 929.2
.~.~ Distorted washer

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}
929  DF  .~ Thread lock {12}
929.2.~.~ Distorted washer

DEFINITION

Classification: 411/929.2

Distorted washer:

Art collection under art collection 929 in which a nut and bolt are provided with a distorted washer to lock the nut to the bolt.