73560182
Sep 26, 1985
Nov 4, 1986
PARTS FOR FRACTIONATING TOWERS, NAMELY BUBBLE TRAYS, SUPPORT TRAYS, BUBBLE CAPS, DOWNCOMERS, SUPPORT COLUMNS AND LINERS, DIVERTERS, INLET AND OUTLET TUBES AND PIPES; PARTS FOR CASCADE COOLERS, NAMELY [ INFECTOR ] * INJECTOR * TUBES, TUBE SHEETS AND TUBE HEADERS
Environmental Control Apparatus