US PATENT SUBCLASS 70 / 270
.~.~.~ Repeating interval


Current as of: June, 1999
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70 /   HD   LOCKS

266  DF  OPERATING MECHANISM {6}
267  DF  .~ Predetermined time interval controlled {3}
268  DF  .~.~ Positively initiated delay interval {2}
270.~.~.~ Repeating interval


DEFINITION

Classification: 70/270

(under subclass 268) Subject matter in which the releasing interval is automatically repeated permitting of release of the locking mechanism at predetermined repeating intervals.