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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.
titanium, zirconium, and tantalum in bar, sheet and wire form; metal tanks and vessels; metal structural columns
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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.
agitating machines, centrifugal pumps, chemical mixing machines
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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.
electrolytic cell components comprising anodes, electrodes, housings, bus bars and electrolytic cell gas headers included in membrane and diaphragm cells for chlorine and/or chlorate production
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
shell and tube heat exchangers for use in the chemical processing industry; condensers for use in the chemical processing industry; coils; plumbing equipment-namely, metal pipes