Mark Identification

CO-HARD

Serial Number

73244245

Filing Date

Dec 26, 1979

Registration Date

Jun 2, 1981

Trademark by

UNITED STATES STEEL CORPORATION

Classification Information

Oil Well Pumping Machinery Parts-Namely, Mud Pump Piston Rods, Plunger Pump Plungers, Polished Rods and Subsurface Pump Plungers

Machinery