Shade structures include awning fabrics carried by awning rolls from which they may be extended to provide shade to areas, and into which they may be retracted when shade is not needed. Closed systems are disclosed in which one or more awning fabrics can be extended through a single drive system. In...http://www.google.fr/patents/US20060090858?utm_source=gb-gplus-shareBrevet US20060090858 - Shade structures
Numéro de demande: 10/977,749 Numéro de publication: US 2006/0090858 A1 Date de dépôt: 29 oct. 2004 Brevet délivré: US7472739 ( Date de délivrance 6 janv. 2009)
