| 摘要 |
A method and a device t,o prevent unauthorized use oi` combustion engine driven ~ehicles~ .ships, equipmentg as ~ell as engrines on1y3 includîng the sl,eps to remove at, least one spark plug3 to attach a device having an externally threaded part as replacernent for the removed spa~k plug(s~, said par~ having an embracing loutsi~e memberg which by means o~ a lockin,.g mechanism can be brought into a freely rotata~le state in relation to the t.hreaded member, tlhus preventing removal of same, or, alterr-~at.i.vely~ bring sai.d melllbers into an interlocked relationship, thus enabling the device to be attached or removed frolll the engine. |
