US PATENT SUBCLASS 70 / 168
.~.~.~.~.~.~ Dead bolt

Current as of: June, 1999
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70 /   HD   LOCKS

57  DF  SPECIAL APPLICATION {7}
77  DF  .~ For closures {5}
158  DF  .~.~ Cover, lid, cap, encasing shield {2}
163  DF  .~.~.~ Removable {4}
166  DF  .~.~.~.~ Directly seating {1}
167  DF  .~.~.~.~.~ Cover-carried lock {2}
168.~.~.~.~.~.~ Dead bolt

DEFINITION

Classification: 70/168

(under subclass 167) Devices including deadbolts.