U.S. federal trademark · Serial No. 72127133 · Reg. No. 0736980
WELL DRILLING FLUIDS, ACIDIZING FLUIDS, PERFORATION FLUIDS, PACKER FLUIDS, OIL WELL PILL FLUIDS, FRACTURING FLUIDS, AND CHEMICAL ADDITIVES FOR EMULSIFYING, AND CONTROLLING VISCOSITY, GEL STRENGTH AND PLASTERING PROPERTIES THEREOF
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