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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.
piping accessories, namely, manually operated metal valves, metal pipe repair clamps, metal pipe couplings, tapping service connectors, namely, metal tapping sleeves, metal pipe fittings, namely, compression fittings, metal manually operated safety valves, and parts thereof
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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.
valves for use in machines, namely, ball valves, gate valves, check valves, butterfly valves, plug valves, safety and safety relief valves, automated globe valves, rotary control and specialty valves and parts thereof; chemical injection pumps; pneumatic actuators for controlling operation of valves used in pipelines; air and gas handling rotary-lobe blowers, centrifugal blowers, compressors and vacuum pumps and parts thereof; progressing cavity pumps, and hydraulic machine parts, namely, compression fittings, and natural gas engines for machines; electric generators powered by gas engines
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9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
pressure regulators for controlling fluid flow rates; automatic pressure relief valves, automatic safety valves; instrument devices, namely, pressure gauges, used for measuring, indicating, controlling, recording or testing, and calibrating temperature, pressure, humidity, vibration, and shock; radio frequency transmitters; surge relievers for oil pipeline services; compression ratio test engines and meters used to measure the octane level of fuel; retail automation control systems comprised of electrical controllers; fuel dispensing systems comprised of fuel dispensers, and meters, namely, used to control and measure the flow of fuel; fluid flow control products, namely, pressure relief valves
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
waste water treatment systems comprised of grinders, macerators and rotary screens