US PATENT SUBCLASS 411 / 80.5
.~ Sleeve type (headless) with longitudinal slot, slit, or split expanded by fastener


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

15  DF  HAVING SEPARATE EXPANDER MEANS {13}
80.5.~ Sleeve type (headless) with longitudinal slot, slit, or split expanded by fastener {1}
80.6  DD  .~.~> Sleeve threaded