Oil field equipment, namely, drilling rig mechanization machines and devices; Sludge pumps; High-pressure pumps for use in oil or gas well hydraulic fracturing operations; Machine elements not for land vehicles, namely, turntables and their rotating devices; Swivel; Winches; Windlasses; Overhead travelling cranes; Travelling block; Hook block; Drilling rigs; Workover rig; Iron roughneck; Top drive; Fabricated structures used in the production of oil and gas from wells and for the drilling of ...

Machines and machine tools, namely, drilling rigs, mud pumps, draw works, masts, substructures, rotary tables, swivels, hooks, traveling blocks, crown blocks, and iron roughnecks