| 摘要 |
<p>The magnetic key and lock arrangement has key made of layers of different metals which have each specific magnetic absorption. Alternatively, the key can be made of a single metal with zones of specific magnetic properties. The key has blade with corresponding positions with similar magnetic strata or layers. Solid contact between the lock and key is necessary. Specific magnetic charges are generated by a special treatment, for example by electromagnetic treatment in zones. The key with different metal layers is treated for ensuring specific magnetic absorption properties for example by electromagnetic charging.</p> |
