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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.
jewelers' accessories, namely, hose connectors, namely, metal couplings for use with oxygen and other torch fuels
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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.
power-operated utility machines, namely, steam cleaners for jewelry cleaning, electro-plating machines, and vacuum casting machines
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8
Hand tools and implements (hand-operated); cutlery; side arms; razors.
hand-operated jewelers' tools, namely, broaches, burrs, tweezers, pliers, rolling mills, american pattern files, hammers; hand-operated casting, metalworking and waxworking tools, namely, carvers, sharpening stones, hammers, sprue cutters; hand-operated utility tools, namely, utility knives, fret saws, and hand saw blades, hand tools, namely, burnishers for smoothing [ good ] *gold*, and milgrain tools for metal decoration
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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.
jewelers' equipment, namely, degree gauges, divider gauges, caliper gauges, micrometer gagues, gemstone gauges, wire and drill gauges; jewelers' measuring apparatus, namely, ring sticks and calipers; scales
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
alcohol lamps; bunsen burners
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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.
casting, metalworking, and waxworking equipment, namely, dapping blocks for metal forming, polishing brushes, file cleaning brushes, polishing muslin and felt buffs for polishing *,* rubber mixing bowls, and flasks for investment casting, jeweler's accessories, namely, cotton polishing [ cloths ] *cloth*