US PATENT SUBCLASS 411 / 524
.~.~.~.~.~ Plural folds

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

511  DF  FASTENER SECURING ELEMENT {3}
516  DF  .~ Resilient metallic {3}
520  DF  .~.~ Sheet metal {5}
522  DF  .~.~.~ Parallel legs, e.g., U-shaped, etc. {1}
523  DF  .~.~.~.~ Folded leg having fastener aperture or recess {1}
524.~.~.~.~.~ Plural folds

DEFINITION

Classification: 411/524

Plural folds:

(under subclass 523) Subject matter wherein the material is folded onto itself at least twice.