Hidden-lock door panel and containing device having the same

Methods and systems of electronic and mechanical dual combination locks

Code combination lock

Access-control fixture lock

Access-control system for door lock

Door security apparatus

DISPOSABLE AND/OR RECYCLABLE COMBINATION LOCK AND METHOD OF USE

APPARATUS AND METHOD FOR CONTROLLED ACCESS

Shelf with secret compartment and hidden locking system

Security Cryptographic Device

Keypsafe

PODIUM WITH SECURE ACCESS PANEL