US PATENT SUBCLASS 70 / 357
.~.~.~.~ Cylinder type


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.~.~.~.~ Cylinder type {9}
358  DF  .~.~.~.~.~> Plural tumbler sets
359  DF  .~.~.~.~.~> Concentric tumblers
360  DF  .~.~.~.~.~> Sliding and rotary plug
361  DF  .~.~.~.~.~> Sliding plug
490  DF  .~.~.~.~.~> Rotary plug {2}
367  DF  .~.~.~.~.~> Cylinder and plug assembly {2}
370  DF  .~.~.~.~.~> Cylinder attaching or mounting means
371  DF  .~.~.~.~.~> Detachable or removable cylinder
372  DF  .~.~.~.~.~> Operating elements, parts and adjuncts {5}


DEFINITION

Classification: 70/357

(under subclass 348) Subject matter wherein the impeding structure is incorporated in a cylindric unit adapted for association with other structures commonly called "yale type".