P The invention relates to a junction device for an extension (2) of a rod (3) and a headrest (4) of a lever, a lever-lock or the like (5). This device is characterized in that it comprises a slide (19) mounted movable, longitudinally, behind a junction plate (20) for headrest (4; 29) and comprising, at each of its ends (21, 22) extending at least in part beyond said plate (20), hooking means (25) capable of cooperating, with a view to making them integral, with the end (26, 27) of two operating rods (3, 28), said connecting plate (20) being provided telescopically at at least one of its ends (24) to extend, after hooking of said rods (3, 28), above the end (36; 35) of the headrests ( 4; 29) housing the latter.The invention also relates to a rod extension and bolt faceplate and bolt lock and a door, window or door leaf latch analog with at least two leaves. /P
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