A cover for an air conditioner condenser unit which is formed from a single unitary sheet of material. The cover includes a peripheral portion, a central portion, and an unbroken ring portion located intermediate the peripheral and central portions. The peripheral, central and ring portions are generally...http://www.google.es/patents/US4858683?utm_source=gb-gplus-sharePatente US4858683 - Stamped discharge grille including two louvred sections
Stamped discharge grille including two louvred sections
