A box includes a body adapted to be directly mounted on the wall and which has an opening, and a canopy which, extending from the body, corresponding to the opening thereof, is designed to cover locally the wireway, transversely thereto. The canopy is formed by at least two separate telescoping parts,...http://www.google.fr/patents/US6353181?utm_source=gb-gplus-shareBrevet US6353181 - Apparatus box to be arranged along a wireway, in particular for electrical apparatus
Apparatus box to be arranged along a wireway, in particular for electrical ...