US PATENT SUBCLASS 70 / 356
.~.~.~.~ Cylinder type with auxiliary tumblers or wards

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}
356.~.~.~.~ Cylinder type with auxiliary tumblers or wards

DEFINITION

Classification: 70/356

(under subclass 348) Subject matter wherein the impeding structure comprises a cylindric unit structure adapted to receive the key and with which may be associated externally of such unit, auxiliary tumblers and/or wards.