US PATENT SUBCLASS 232 / 36
.~.~.~ Door-controlled

Current as of: June, 1999
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232 /   HD   DEPOSIT AND COLLECTION RECEPTACLES

17  DF  LETTER BOXES {12}
*  DD  .~ Signals {2}
*  DD  .~.~ Sound {1}
36.~.~.~ Door-controlled

DEFINITION

Classification: 232/36

Alarms operated by movement of the box doors.

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14,

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340, Communications: Electrical,

545.1+, for electrical automatic door movement responsive indicating systems.