How Different Door Locks Work?
Locksmith-Cheap2019-11-05T16:17:03+00:00Even though there are innumerable designs and versions of door locks, all are derived from relatively simple technology. The door lock was invented more than 6,000 decades ago in ancient Egypt, and while locks have evolved since then, the basic physics remain the same. Pin and Tumbler Locks Pin and tumbler locks are exceptionally common.