A01 - Agriculture; forestry; animal husbandry; hunting; trapping; fishing A21 - Baking; equipment for making or processing doughs; doughs for baking A22 - Butchering; meat treatment; processing poultry or fish A23 - Foods or foodstuffs; treatment thereof, not covered by other classes A24 - Tobacco; cigars; cigarettes; simulated smoking devices; smokers' requisites A41 - Wearing apparel A42 - Headwear A43 - Footwear A44 - Haberdashery; jewellery A45 - Hand or travelling articles A46 - Brushware A47 - Furniture; domestic articles or appliances; coffee mills; spice mills; suction cleaners in general A61 - Medical or veterinary science; hygiene A62 - Life-saving; fire-fighting A63 - Sports; games; amusements B01 - Physical or chemical processes or apparatus in general B02 - Crushing, pulverising, or disintegrating; preparatory treatment of grain for milling B03 - Separation of solid materials using liquids or using pneumatic tables or jigs; magnetic or electrostatic separation of solid materials from solid materials or fluids; separation by high-voltage electric fields B04 - Centrifugal apparatus or machines for carrying-out physical or chemical processes B05 - Spraying or atomising in general; applying fluent materials to surfaces, in general B06 - Generating or transmitting mechanical vibrations in general B07 - Separating solids from solids; sorting B08 - Cleaning B09 - Disposal of solid waste; reclamation of contaminated soil B21 - Mechanical metal-working without essentially removing material; punching metal B22 - Casting; powder metallurgy B23 - Machine tools; metal-working not otherwise provided for B24 - Grinding; polishing B25 - Hand tools; portable power-driven tools; handles for hand implements; workshop equipment; manipulators B26 - Hand cutting tools; cutting; severing B27 - Working or preserving wood or similar material; nailing or stapling machines in general B28 - Working cement, clay, or stone B29 - Working of plastics; working of substances in a plastic state in general B30 - Presses B31 - Making articles of paper, cardboard or material worked in a manner analogous to paper; working paper, cardboard or material worked in a manner analogous to paper B32 - Layered products B33 - Additive manufacturing technology B41 - Printing; lining machines; typewriters; stamps B42 - Bookbinding; albums; files; special printed matter B43 - Writing or drawing implements; bureau accessories B44 - Decorative arts B60 - Vehicles in general B61 - Railways B62 - Land vehicles for travelling otherwise than on rails B63 - Ships or other waterborne vessels; related equipment B64 - Aircraft; aviation; cosmonautics B65 - Conveying; packing; storing; handling thin or filamentary material B66 - Hoisting; lifting; hauling B67 - Opening or closing bottles, jars or similar containers; liquid handling B68 - Saddlery; upholstery B81 - Microstructural technology B82 - Nanotechnology C01 - Inorganic chemistry C02 - Treatment of water, waste water, sewage, or sludge C03 - Glass; mineral or slag wool C04 - Cements; concrete; artificial stone; ceramics; refractories C05 - Fertilisers; manufacture thereof C06 - Explosives; matches C07 - Organic chemistry C08 - Organic macromolecular compounds; their preparation or chemical working-up; compositions based thereon C09 - Dyes; paints; polishes; natural resins; adhesives; compositions not otherwise provided for; applications of materials not otherwise provided for C10 - Petroleum, gas or coke industries; technical gases containing carbon monoxide; fuels; lubricants; peat C11 - Animal or vegetable oils, fats, fatty substances or waxes; fatty acids therefrom; detergents; candles C12 - Biochemistry; beer; spirits; wine; vinegar; microbiology; enzymology; mutation or genetic engineering C13 - Sugar industry C14 - Skins; hides; pelts or leather C21 - Metallurgy of iron C22 - Metallurgy; ferrous or non-ferrous alloys; treatment of alloys or non-ferrous metals C23 - Coating metallic material; coating material with metallic material; chemical surface treatment; diffusion treatment of metallic material; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general; inhibiting corrosion of metallic material or incrustation in general C25 - Electrolytic or electrophoretic processes; apparatus therefor C30 - Crystal growth C40 - Combinatorial technology D01 - Natural or man-made threads or fibres; spinning D02 - Yarns; mechanical finishing of yarns or ropes; warping or beaming D03 - Weaving D04 - Braiding; lace-making; knitting; trimmings; non-woven fabrics D05 - Sewing; embroidering; tufting D06 - Treatment of textiles or the like; laundering; flexible materials not otherwise provided for D07 - Ropes; cables other than electric D21 - Paper-making; production of cellulose E01 - Construction of roads, railways, or bridges E02 - Hydraulic engineering; foundations; soil-shifting E03 - Water supply; sewerage E04 - Building E05 - Locks; keys; window or door fittings; safes E06 - Doors, windows, shutters, or roller blinds, in general; ladders E21 - Earth or rock drilling; mining F01 - Machines or engines in general; engine plants in general; steam engines F02 - Combustion engines; hot-gas or combustion-product engine plants F03 - Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for F04 - Positive-displacement machines for liquids; pumps for liquids or elastic fluids F15 - Fluid-pressure actuators; hydraulics or pneumatics in general F16 - Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general F17 - Storing or distributing gases or liquids F21 - Lighting F22 - Steam generation F23 - Combustion apparatus; combustion processes F24 - Heating; ranges; ventilating F25 - Refrigeration or cooling; combined heating and refrigeration systems; heat pump systems; manufacture or storage of ice; liquefaction or solidification of gases F26 - Drying F27 - Furnaces; kilns, ovens or retorts F28 - Heat exchange in general F41 - Weapons F42 - Ammunition; blasting G01 - Measuring; testing G02 - Optics G03 - Photography; cinematography; analogous techniques using waves other than optical waves; electrography; holography G04 - Horology G05 - Controlling; regulating G06 - Computing; calculating or counting G07 - Checking-devices G08 - Signalling G09 - Educating; cryptography; display; advertising; seals G10 - Musical instruments; acoustics G11 - Information storage G12 - Instrument details G16 - Information and communication technology specially adapted for specific application fields G21 - Nuclear physics; nuclear engineering H01 - Basic electric elements H02 - Generation, conversion, or distribution of electric power H03 - Basic electronic circuitry H04 - Electric communication technique H05 - Electric techniques not otherwise provided for