6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
manufactured metal equipment to be positioned within oil and/or gas wells during drilling, completion, production, well abandonment and/or well work-over operations, namely, stabilizers, centralizers, collars, plugs, packers, and downhole valves; metal casings used to stabilize the wellbore in oil and gas wells
7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
manufactured equipment to be positioned within oil and/or gas wells during drilling, completion, production, well abandonment and/or well work-over operations, namely, wellbore drilling tools, reamers, stabilizers, centralizers, casing and reaming shoes, collars, plugs, packers, downhole valves, and downhole motors; machine tools for use in drilling, installation, construction, and/or exploration in the oil and gas industry, namely, wellbore drilling tools, reamers, stabilizers, vibratory tools, centralizers, casing and reaming shoes, collars, plugs, packers, downhole valves, wellbore clean up tools, fishing tools, catching tools, power swivels, and downhole motors
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software
engineering services in the field of the design, manufacture, and application of specialized downhole tools; scientific and technological services, namely, scientific research, analysis and testing in the oil and gas fields and design relating thereto; industrial analysis and research services in the field of oil and gas field exploration; analysis services for oil field exploration, drilling, and/or testing