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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.
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]
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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.
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]
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17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]
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20
Furniture, mirrors, picture frames; goods (not included in other classes) of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]
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21
Household or kitchen utensils and containers; combs and sponges; brushes (except paint brushes); brush-making materials; articles for cleaning purposes; steelwool; unworked or semi-worked glass (except glass used in building); glassware, porcelain and earthenware not included in other classes.
self-tapping screws, [ socket screws, ] drive screws, [ set screws, cap screws, ] machine screws, screwnails, [ thumb screws, ] masonry nails [ , stripper bolts, screw plugs, and wing nuts ]