Treatment of materials Trademarks Filed in June 5, 1991
MASTERMARK

MASTERMARK

Filed: June 5, 1991
photofinishing services
Owned by: QUALEX INC.
Serial Number: 74173101

ENVIRO

ENVIRO

Filed: June 5, 1991
non-toxic, biodegradable degreasers, cleaners, surfactants and pipe dope cleaners for industrial and oilfield applications…
Owned by: Petroleum Fluids Consultants, Inc.
Serial Number: 74177027

ENVIROLOG

ENVIROLOG

Filed: June 5, 1991
non-toxic, biodegradable degreasers, cleaners, surfactants and pipe dope cleaners for industrial and oilfield applications…
Owned by: Petroleum Fluids Consultants, Inc.
Serial Number: 74177028