87700922
Nov 29, 2017
Jan 29, 2019
WASHINGTON ROTATING CONTROL HEADS INC.
Active Trademark
Equipment and devices, namely, rotating control devices, diverters, and various rubbers, namely, stripper, wiper, and casing rubbers for use in general drilling applications for oil, gas, water, and geothermal drilling including oil and gas spudding applications, water well applications, geothermal applications, geotechnical applications, open pit mining applications, underground mining applications, construction applications, monitoring well applications, blast hole sampling applications, mineral grade control applications, and anchor hole drilling applications
Machinery