Security Indicating Attachment for Safe-Type Apparatus
Patent, Filed 19 Mar 1987, patented 20 Sep 1988
DEPARTMENT OF THE NAVY WASHINGTON DC
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This disclosure teaches a battery powered security indicating device which attaches to the drawer of a safe. Sensors send drawer position and combination dial rotation signals to a microprocessor which in turn provides audio and or visual indication to the operator indicating when the drawer is open, when it is properly closed and when it is improperly locked.
- Defense Systems