| 摘要 |
<p>Embodiments of the present invention are directed to locks, and more particularly to locks opened with a key. Many conventional locks are designed to be opened with a key specifically configured for the locking device within the lock. Users often have a very difficult time locating which key is the proper key for a particular lock. Systems have been developed to help the user match keys with locks. For example, users can put colored rings or bumpers on a key for a lock to distinguish that key from other keys.</p> |
