NL
USPTO Trademark Record · Serial No. 73122037
Trademark details
It was initially claimed by NL INDUSTRIES, INC. on 19770408.
That brand applies to the following goods and services:APPARATUS AND INSTRUMENTS FOR TESTING DRILLING MUD, WATER, CORROSION, WELL CORES, WELL CUTTINGS, AND CLAY AND MINERAL SUSPENSIONS-NAMELY, RESISTIVITY METERS, MEMBRANE FILTER TESTERS, PH-METERS, RHEOMETERS, GREEN SAND STRENGTH TESTERS, MUD TESTERS, VISCOMETERS, AND CONSISTOMETERS.
You can learn more about that trademark on the USPTO website: View the USPTO record
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