| 摘要 |
An antitheft device is provided for use with a reversible type key. The device includes a plate movable in a slot extending transverse to the direction of a key-receiving slot. The key entering the slot moves the plate which, in turn, pivots a lever to latch with the lock to prevent the antitheft device from becoming operative as long as the key is in the key-receiving slot. The plate has a guiding surface which rides in a plane surface on the key as the key is inserted. The plane surface on the key moves the plate and lever to the desired position.
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