A rack assembly includes a nineteen-inch sub-assembly coupled to a four-inch extension that comprises two substantially closed side panels adjacent to each other, two substantially open sides adjacent to each other, a closed top and bottom, a plurality of mounting flanges for attaching the extension...http://www.google.es/patents/US6675976?utm_source=gb-gplus-sharePatente US6675976 - Systems and methods for an extension for a nineteen-inch communications switch component rack
Systems and methods for an extension for a nineteen-inch communications ...
