US PATENT SUBCLASS 70 / 493
.~.~.~.~.~.~.~.~ Pin tumblers


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}
490  DF  .~.~.~.~.~ Rotary plug {2}
491  DF  .~.~.~.~.~.~ Sliding tumblers {2}
492  DF  .~.~.~.~.~.~.~ Transverse of plug {2}
493.~.~.~.~.~.~.~.~ Pin tumblers {1}
494  DF  .~.~.~.~.~.~.~>.~.~ Rotatable pins (e.g., MEDECO lock)


DEFINITION

Classification: 70/493

Pin tumblers:

(under subclass 492) Device wherein the impediments are cylindrical in configuration.