Treatment of materials Trademarks Filed in May 22, 1990
RESEARCH-COTTRELL

RESEARCH-COTTRELL

Filed: May 22, 1990
installation and repair of pollution control apparatus and systems
Owned by: RESEARCH-COTTRELL, INC.
Serial Number: 74061584

R-C ENVIRONMENTAL SERVICES & TECHNOLOGIES

R-C ENVIRONMENTAL SERVICES & TECHNOLOGIES

Filed: May 22, 1990
installation and repair of pollution control apparatus and systems
Owned by: RESEARCH-COTTRELL, INC.
Serial Number: 74061610

ENPRO

ENPRO

Filed: May 22, 1990
waste disposal services for others
Owned by: Environmental Professionals, Inc.
Serial Number: 74062963