HORSEHEAD RESOURCE DEVELOPMENT CO., INC. Trademarks
ECOSORB
Filed: February 6, 1989
HEAVY METAL ABSORBENT FOR POLLUTION CONTROL
Owned by: HORSEHEAD RESOURCE DEVELOPMENT CO., INC.
Serial Number: 73779368
QUANTUM-STEP
Filed: February 25, 1991
equipment for removal of silver from the discharge from photographic development operations and other silver laden discharges…
Owned by: HORSEHEAD RESOURCE DEVELOPMENT CO., INC.
Serial Number: 74142356
