Abstract: This invention relates to means for indication and/or illumination which can be mounted to project from vertical walls and horizontal beams consisting of a sign portion of substantially prismatic shape hinged to a supporting member adapted for attachment to a wall or beam, the sign portion of which has two diverging faces joined by a bevel portion having a flat surface lying at right angles to the bisector of the dihedral formed by the surfaces of the diverging faces, on which bevel portion are provided hinge means having an axis at right angles to the flat surface of the bevel portion. An attachment member is provided in the supporting member which can be engaged by one of the diverging faces placed in front thereof and rigidly attached thereto.

Abstract: The present invention relates to an improved connection and fixing system for electronic unit which connects, with a single operation, a unit including an electronic part to a housing or containing casing previously fixed to a wall or ceiling, which in its turn is easily connected to the electric supply network, with mechanical fixing both of the electronic unit and of a shield to the casing, with a rapid and easy closure system for the assembly.