US PATENT SUBCLASS 411 / 504
.~.~ Solid end type

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

500  DF  HEADED FASTENER ELEMENT {2}
501  DF  .~ Having plastically flowable or deflectable end, e.g., rivet, etc. {2}
504.~.~ Solid end type {2}
505  DF  .~.~.~> Stay bolt
506  DF  .~.~.~> Bolt head and end flowable {1}

DEFINITION

Classification: 411/504

Solid end type:

(under subclass 501) Subject matter wherein the end is devoid of any cavity, gap or space therein.