U.S. federal trademark · Serial No. 73357882
CONSULTING SERVICES TO THOSE CONCERNED WITH WELLBORE FLUIDS PRINCIPALLY TO STUDY THE PROBLEMS ENCOUNTERED IN DRILLING AND WORKING WELLS AND TO RECOMMEND ADDITIVES FOR WELLBORE FLUIDS TO PREVENT LOST CIRCULATION AND TO CONTROL SUCH PROPERTIES AS VICOSITY DENSITY AND THIXOTHROPY OF SUCH FLUIDS
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