| A 01 | Agriculture; forestry; animal husbandry; hunting; trapping; fishing. |
| A 21 | Baking; edible doughs; |
| A 22 | Butchering; meat treatment; processing poultry or fish; |
| A 23 | Foods or foodstuffs; their treatment, not covered by other classes; |
| A 24 | Tobacco; cigars; cigarettes; smokers' requisites. |
| A 41 | Wearing apparel; |
| A 42 | Headwear; |
| A 43 | Footwear; |
| A 44 | Haberdashery; jewellery; |
| A 45 | Hand or travelling articles; |
| A 46 | Brushware; |
| A 47 | Furniture; domestic articles or appliances; coffee mills; spice mills; suction cleaners in general. |
| A 61 | Medical or veterinary science; hygiene; |
| A 62 | Life-saving; fire-fighting; |
| A 63 | Sports; games; amusements. |
| B 01 | Physical or chemical processes or apparatus in general; |
| B 02 | Crushing, pulverising, or disintegrating; preparatory treatment of grain for milling; |
| B 03 | 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; |
| B 04 | Centrifugal apparatus or machines for carrying-out physical or chemical processes; |
| B 05 | Spraying or atomising in general; applying liquids or other fluent materials to surfaces, in general; |
| B 06 | Generating or transmitting mechanical vibrations in general; |
| B 07 | Separating solids from solids; sorting; |
| B 08 | Cleaning; |
| B 09 | Disposal of solid waste; reclamation of contaminated soil. |
| B 21 | Mechanical metal-working without essentially removing material; punching metal; |
| B 22 | Casting; powder metallurgy; |
| B 23 | Machine tools; metal-working not otherwise provided for; |
| B 24 | Grinding; polishing; |
| B 25 | Hand tools; portable power-driven tools; handles for hand implements; workshop equipment; manipulators; |
| B 26 | Hand cutting tools; cutting; severing; |
| B 27 | Working or preserving wood or similar material; nailing or stapling machines in general; |
| B 28 | Working cement, clay, or stone; |
| B 29 | Working of plastics; working of substances in a plastic state in general; |
| B 30 | Presses; |
| B 31 | Making paper articles; working paper; |
| B 32 | Layered products. |
| B 41 | Printing; lining machines; typewriters; stamps; |
| B 42 | Bookbinding; albums; files; special printed matter; |
| B 43 | Writing or drawing implements; bureau accessories; |
| B 44 | Decorative arts. |
| B 60 | Vehicles in general; |
| B 61 | Railways; |
| B 62 | Land vehicles for travelling otherwise than on rails; |
| B 63 | Ships or other waterborne vessels; related equipment; |
| B 64 | Aircraft; aviation; cosmonautics; |
| B 65 | Conveying; packing; storing; handling thin or filamentary material; |
| B 66 | Hoisting; lifting; hauling; |
| B 67 | Opening or closing bottles, jars or similar containers; liquid handling; |
| B 68 | Saddlery; upholstery. |
| C 01 | Inorganic chemistry; |
| C 02 | Treatment of water, waste water, sewage, or sludge; |
| C 03 | Glass; mineral or slag wool; |
| C 04 | Cements; concrete; artificial stone; ceramics; refractories; |
| C 05 | Fertilisers; manufacture thereof; |
| C 06 | Explosives; matches; |
| C 07 | Organic chemistry; |
| C 08 | Organic macromolecular compounds; their preparations or chemical working-up; compositions based thereon; |
| C 09 | Dyes; paints; polishes; natural resins; adhesives; miscellaneous compositions; miscellaneous applications of materials; |
| C 10 | Petroleum, gas or coke industries; technical gases containing carbon monoxide; fuels; lubricants; peat; |
| C 11 | Animal or vegetable oils, fats, fatty substances or waxes; fatty acids therefrom; detergents; candles; |
| C 12 | Biochemistry; beer; spirits; wine; vinegar; microbiology; enzymology; mutation or genetic engineering; |
| C 13 | Sugar industry; |
| C 14 | Skins; hides; pelts; leather. |
| C 21 | Metallurgy of iron; |
| C 22 | Metallurgy; ferrous or non-ferrous alloys; treatment of alloys or non-ferrous metals; |
| C 23 | 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; |
| C 25 | Electrolytic or electrophoretic processes; apparatus therefor; |
| C 30 | Crystal growth. |
| D 01 | Natural or artificial threads or fibres; spinning; |
| D 02 | Yarns; mechanical finishing of yarns or ropes; warping or beaming; |
| D 03 | Weaving; |
| D 04 | Braiding; lace-making; knitting; trimmings; non-woven fabrics; |
| D 05 | Sewing; embroidering; tufting; |
| D 06 | Treatment of textiles or the like; laundering; flexible materials not otherwise provided for; |
| D 07 | Ropes; cables other than electric. |
| D 21 | Paper-making; production of cellulose. |
| E 01 | Construction of roads, railways, or bridges; |
| E 02 | Hydraulic engineering; foundations; soil-shifting; |
| E 03 | Water supply; sewerage; |
| E 04 | Building; |
| E 05 | Locks; Keys; Window or door fittings; safes; |
| E 06 | Doors, windows, shutters, or roller blinds, in general; ladders. |
| E 21 | Earth drilling; mining. |
| F 01 | Machines or engines in general; engine plants in general; steam engines; |
| F 02 | Combustion engines; hot-gas or combustion-product engine plants; |
| F 03 | Machines or engines for liquids; wind, spring, weight, or miscellaneous motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for; |
| F 04 | Positive-displacement machines for liquids; pumps for liquids or elastic fluids. |
| F 15 | Fluid-pressure actuators; hydraulics or pneumatics in general; |
| F 16 | Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general; |
| F 17 | Storing or distributing gases or liquids. |
| F 21 | Lighting; |
| F 22 | Steam generation; |
| F 23 | Combustion apparatus; combustion processes; |
| F 24 | Heating; ranges; ventilating; |
| F 25 | Refrigeration or cooling; combined heating and refrigeration system; heat pumps systems; manufacture or storage of ice; liquefaction or solidification of gases; |
| F 26 | Drying; |
| F 27 | Furnaces; kilns; ovens; retorts; |
| F 28 | Heat exchange in general. |
| F 41 | Weapons; |
| F 42 | Ammunition; Blasting. |
| G 01 | Measuring; testing; |
| G 02 | Optics; |
| G 03 | Photography; cinematography; analogous techniques using waves other than optical waves; electrography; holography; |
| G 04 | Horology |
| G 05 | Controlling; regulating; |
| G 06 | Computing; calculating; counting; |
| G 07 | Checking-devices; |
| G 08 | Signalling |
| G 09 | Educating; cryptography; display; advertising; seals; |
| G 10 | Musical instruments; acoustics; |
| G 11 | Information storage; |
| G 12 | Instrument details. |
| G 21 | Nuclear physics; nuclear engineering. |
| H 01 | Basic electric elements; |
| H 02 | Generation, conversion, or distribution of electric power; |
| H 03 | Basic electronic circuitry; |
| H 04 | Electric communication technique; |
| H 05 | Electric techniques not otherwise provided for. |