| 摘要 |
<p>An anti-theft apparatus for vehicles includes a permanent magnetic attraction and retention element joined to a valve incorporated in the hydraulic return circuit of the braking system of an automobile. The magnetic attraction and retention element is controlled by a dual effect coil activated only by an electronic circuit set off by specific voltages acting as an electronic code. A valve, a seal, the magnetic retention element, the dual effect coil, and the electronic circuit are housed in a tamperproof container.</p> |
