US PATENT SUBCLASS 411 / 49
.~.~ Relative rotation preventing means

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}
44  DF  .~ Including sleeve and distinct tapered expander (e.g., anchor bolt type) {9}
49.~.~ Relative rotation preventing means {1}
50  DF  .~.~.~> Guide and follower {3}

DEFINITION

Classification: 411/49

Relative rotation preventing means:

(under subclass 44) Subject matter wherein means are provided for preventing rotative movement between the sleeve and the expander.