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2. Berlin key - Wikipedia

   en.wikipedia.org/wiki/Berlin_key

   Berlin key. The Berlin key (also known as, German, Schließzwangschlüssel, or, in English, forced-locking key) is a key for a type of door lock.It was designed to force people to close and lock their doors, usually a main entrance door or gate leading into a common yard or tenement block.

3. Officer's tool - Wikipedia

   en.wikipedia.org/wiki/Officer's_tool

   An officer’s tool (also known as an A-tool, rex tool, or lock puller) is a forcible entry device used by firefighters and other first responders. Officer’s tools are designed to completely remove cylindrical locks from doors without causing major structural damage, allowing for direct access to the internal locking mechanism.

4. Mantrap (access control) - Wikipedia

   en.wikipedia.org/wiki/Mantrap_(access_control)

   Entrance to HM Prison Edinburgh. A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens.

5. Bored cylindrical lock - Wikipedia

   en.wikipedia.org/wiki/Bored_cylindrical_lock

   Some commercially-sold doors may come prepared to receive one or more bored cylindrical locks, such as entry doors, which typically require both a door knob and dead bolt. [ 2 ] In the United States, typically, the face bore is sized from 1.5 to 2.125 inches (3.81 to 5.40 cm) in diameter and is centered at 2.375 or 2.75 inches (6.03 or 6.99 cm ...

6. Electronic lock - Wikipedia

   en.wikipedia.org/wiki/Electronic_lock

   A quick demonstration of an electronic door lock. An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.

7. Jayco, Inc - Wikipedia

   en.wikipedia.org/?title=Jayco,_Inc&redirect=no

   Jayco; This page is a redirect. The following categories are used to track and monitor this redirect: From a page move ...