| 摘要 |
The invention relates to a device for protecting the security cylinder of a mortise lock (1), the said mortise lock (1) being mounted in a recess in the edge (11) of a door (12), and including a passage (7) for a security cylinder. The device according to the invention comprises a solid external front piece (24) provided with a bore (22) for passage of the security cylinder and a rear fastening plate (30) connected to the said front piece (20) by at least two screws (34, 35), at least one (34) of them passing through (36) the box case (2) of the lock (1). Application to locksmithing. <IMAGE>
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