US PATENT SUBCLASS 411 / 985
.~.~.~ Bolthead- or nut-held

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}
984  DF  .~.~ Longitudinal {5}
985.~.~.~ Bolthead- or nut-held {1}
986  DF  .~.~.~.~> Reversed bolthead or nut

DEFINITION

Classification: 411/985

Bolthead- or nut-held:

Art collection under art collection 984 in which the locking mechanism is held in place by the device alone.