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  2. Electric strike - Wikipedia

    en.wikipedia.org/wiki/Electric_strike

    Electric strike. Electric strike with monitoring contact. An electric strike is an access control device used for door frames. It replaces the fixed strike faceplate often used with a latch (also known as a keeper). Like a fixed strike plate, it normally presents a ramped or beveled surface to the locking latch allowing the door to close and ...

  3. Electronic lock - Wikipedia

    en.wikipedia.org/wiki/Electronic_lock

    Electric strikes (also called electric latch release) replace a standard strike mounted on the door frame and receive the latch and latch bolt. Electric strikes can be simplest to install when they are designed for one-for-one drop-in replacement of a standard strike, but some electric strike designs require that the door frame be heavily modified.

  4. Electromagnetic lock - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_lock

    These door holders were traditionally used to hold doors open, but in this application Saphirstein believed that they could be packaged and adapted to work as a fail-safe lock. After a successful prototype and installation at the Forum, Saphirstein continued evolving and improving the design and established the Locknetics company to develop ...

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  6. Snap gun - Wikipedia

    en.wikipedia.org/wiki/Snap_gun

    The snap gun strikes all of the bottom pins at once with a strong impact, and then withdraws again. The bottom pins transfer their kinetic energy to the top pins and come to a complete stop without penetrating the lock housing. [1] The driver pins are thrown out of the cylinder body entirely up into the lock housing.

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