-
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.
pipeline joints, tees, fittings, connectors, wye's, plugs and flanges made of metal; drilling and production joints, tees, fittings, wye's, connectors, plugs, flanges, sleds, frames, swivels and jigs made of metal
-
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.
oil and gas pipeline equipment and hardware, namely, power operated repair clamps, connectors, hot taps, plugs, joints, pig launchers and receivers, and swivels; power operated lifting, installation, handling, removal and recovery tools, namely, pipe recovery tools
-
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.
[hydrocarbon sensing valves]