US PATENT SUBCLASS 411 / 353
.~.~ Retainer ring

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

337  DF  HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12}
352  DF  .~ Metallic resilient securing means {1}
353.~.~ Retainer ring

DEFINITION

Classification: 411/353

Retainer ring:

(under subclass 352) Subject matter wherein the securing means is in the form of a circular band of metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

517+, for retainer rings, per se.