Environmental control apparatus Trademarks Filed in February 14, 1972
TU
Filed: February 14, 1972
NON-METALLIC PACKING FOR COOLING TOWERS
Owned by: TRANS UNION CORPORATION
Serial Number: 72415516
TRANS UNION
Filed: February 14, 1972
LIQUID COOLING TOWERS
Owned by: TRANS UNION CORPORATION
Serial Number: 72415524
DURATUBE
Filed: February 14, 1972
HEAT EXCHANGERS FOR FURNACE EQUIPMENT
Owned by: LENNOX INDUSTRIES INC.
Serial Number: 72416125
