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        <h1 class="page-title">Jour : <span>27 janvier 2021</span></h1>          
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                                                      Pour mieux assurer sa sécurité, l’homme a mis au point des systèmes de verrouillage. Ainsi, depuis la sédentarisation, la serrure est le moyen le plus utilisé pour le verrouillage renforcé des portes et des fenêtres. La serrure connaît chaque année des améliorations afin que l’on                                                 </p>
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