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2. Lockset - Wikipedia

   en.wikipedia.org/wiki/Lockset

   Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]

3. Push-button - Wikipedia

   en.wikipedia.org/wiki/Push-button

   A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. [1] The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed.

4. Door closer - Wikipedia

   en.wikipedia.org/wiki/Door_closer

   Another device for smaller domestic doors used a loop of rope or skein fixed to the door frame, that was twisted, with a piece of wood placed in between the twists to push the door. The opening of the door twists the skein further, when the door is released the rope's torsional force pushes the arm back against the door, thereby closing it. [5] [6]

5. Power door locks - Wikipedia

   en.wikipedia.org/wiki/Power_door_locks

   Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.

6. Latch - Wikipedia

   en.wikipedia.org/wiki/Latch

   The keyhole of a mechanical cam lock is usually the same as an ordinary padlock. A physical key is used to unlock the lock. The physical key has a notch or slot corresponding to the obstacle in the cam lock, allowing it to rotate freely in the lock. Different from mechanical cam locks, electronic cam locks use an electronic key to unlock.

7. Remote keyless system - Wikipedia

   en.wikipedia.org/wiki/Remote_keyless_system

   One long beep is for the trunk or power tailgate. One short beep signifies that the car is locked and alarm is set. The functions of a remote keyless entry system are contained on a key fob or built into the ignition key handle itself. Buttons are dedicated to locking or unlocking the doors and opening the trunk or tailgate.