| 摘要 |
The opening order of this safety lock causes the following operations to occur successively: application, to the key, of a coded sequence of angular solicitations in both directions, then the free rotation of this key in a given direction. The decoding is ensured electrically by comparing, with a previously memorized reference sequence, the train of electrical pulses generated by two electromechanical transducers actuated, according to the sequence applied to the key, by a cam itself driven by this key.
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