Air-conditioning systems in which conditioned primary air is supplied from one or

Official title: Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems (room units F24F1/00)

F24F3/00 (Air-conditioning systems in which conditioned primary air is supplied from one or) appears on 4,665 US grants and 4,572 published applications in this corpus.