75620265
Jan 13, 1999
Apr 11, 2000
heat transfer units for heating and cooling liquids; and liquid-gas contacting units for adding gases to, and removing gases from liquids
Environmental Control Apparatusinstallation, maintenance, and repair services for heat-transfer units and for liquid-gas contacting units
Building Construction and Repair[design services for heat-transfer units and for liquid-gas contacting units]
Computer and Scientific