A mattress comprising coil springs arranged as spring units in covering pockets, a so-called pocket mattress, is provided. The spring units of the mattress are arranged in succession in elongate strings, the mattress comprising a plurality of such interconnected strings arranged side by side. A distinguishing...http://www.google.es/patents/US20050257323?utm_source=gb-gplus-sharePatente US20050257323 - Pocket mattress with varying height
Número de solicitud: 10/521,824 Número de publicación: US 2005/0257323 A1 Fecha de presentación: 24 Oct 2003 Patente emitida: US7194777 ( Fecha de emisión 27 Mar 2007)
