US PATENT SUBCLASS 70 / 339
.~.~.~ Interdependent


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



70 /   HD   LOCKS

266  DF  OPERATING MECHANISM {6}
336  DF  .~ Key {10}
337  DF  .~.~ Multiple keys {3}
339.~.~.~ Interdependent


DEFINITION

Classification: 70/339

(under subclass 337) Devices in which the concurrent or simultaneous employment of two or more keys to effect release is necessary.