US PATENT SUBCLASS 411 / 979
.~.~ Resilient

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

955  DF  LOCKED BOLTHEAD OR NUT {7}
974  DF  .~ Side lock {7}
979.~.~ Resilient {1}
980  DF  .~.~.~> Automatic {2}

DEFINITION

Classification: 411/979

Resilient:

Art collection under art collection 974 wherein the locking means has a part which is yieldable to permit rotation of the device.