US PATENT SUBCLASS 70 / 381
.~.~.~.~.~.~ Cylinder rings

Current as of: June, 1999
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70 /   HD   LOCKS

266  DF  OPERATING MECHANISM {6}
336  DF  .~ Key {10}
344  DF  .~.~ Single key {4}
348  DF  .~.~.~ Tumbler type {5}
357  DF  .~.~.~.~ Cylinder type {9}
372  DF  .~.~.~.~.~ Operating elements, parts and adjuncts {5}
381.~.~.~.~.~.~ Cylinder rings

DEFINITION

Classification: 70/381

(under subclass 372) Devices comprising rings spacing the flange of the exterior part of the cylinder from its supporting structure and at the same time acting as trimming in the form of an escutcheon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

452, for other escutcheons for key operated locking mechanisms.