A diffusion device comprises a bottom portion having a bottom cover disposed thereon. The device further includes a top portion having a top cover disposed atop the bottom portion and a pump assembly disposed between the top cover and the bottom cover. First, second, and third arm portions extend from...http://www.google.fr/patents/US20050205916?utm_source=gb-gplus-shareBrevet US20050205916 - Diffusion device and method of diffusing
Numéro de demande: 11/131,718 Numéro de publication: US 2005/0205916 A1 Date de dépôt: 18 mai 2005 Brevet délivré: US7469844 ( Date de délivrance 30 déc. 2008)
