11 HEAT EXCHANGERS TRANSMITTING HEAT FROM A PRIMARY FLUID TO A SECONDARY FLUID VIA COILED TUBES AS A COMPONENT OF SPACE AND FLUID TEMPERATURE CONTROL SYSTEMS
Trademark Events
Mar 17, 1999
Expired Sec. 9
Dec 5, 1983
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.