[Class : 1] Fluids For Drilling Including Drilling Muds, Including Drilling Mud For Oil, Gas And Geothermal Steam For Use In Industry; Chemical Additives For Drilling Fluids, Including Chemical Additives For Drilling Muds; Cellulose, Including Cellulose Derivatives, Cellulose For Industrial Purposes And Cellulose Pulp.
[Class : 1] Fluids For Drilling Including Drilling Muds, Including Drilling Mud For Oil, Gas And Geothermal Steam For Use In Industry, Chemical Additives For Drilling Fluids, Including, Chemical Additives For Drilling Muds, Cellulose, Including Cellulose Derivatives, Cellulose For Industrial Purposes And Cellulose Pulp