US PATENT SUBCLASS 70 / 263
.~ Operation and control

Current as of: June, 1999
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70 /   HD   LOCKS

262  DF  SYSTEMS {1}
263.~ Operation and control {2}
264  DF  .~.~> Central control
265  DF  .~.~> Serially operable

DEFINITION

Classification: 70/263

(under subclass 262) Subject matter arranged in such relationship as to involve the operation and control.