Driscose Trademarks

DRISCOSE
Drilling Mud Additives
Cancelled  ·  October 3, 1960  ·  72105632  · 
DRISCOSE
SODIUM SALT OF CARBOXYMETHYLCELLULOSE AS AN ADDITIVE FOR DRILLING MUDS
Expired  ·  February 27, 1948  ·  71550675  ·