US PATENT SUBCLASS 70 / 433
.~.~ With recorder

Current as of: June, 1999
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70 /   HD   LOCKS

431  DF  PARTS, ATTACHMENTS, ACCESSORIES AND ADJUNCTS {9}
432  DF  .~ Condition indicators {5}
433.~.~ With recorder {2}
434  DF  .~.~.~> Electric
435  DF  .~.~.~> Padlock

DEFINITION

Classification: 70/433

(under subclass 432) Devices including devices specifically applied to a lock operating mechanism which provide a printed record of such condition.