D16 (Fermentation industry);  E13 (Heterocyclics);  H06 (Gaseous and liquid fuels including pollution control);  D23 (Oils, fats and waxes)
H09 (Fuel products not of petroleum origin e.g. coal gasification);  A97 (Miscellaneous goods not specified elsewhere)
B07 (General - tablets, dispensers, catheters);  D15 (Treating water, industrial waste and sewage);  J01 (Separation including e.g. evaporation, crystallisation etc.);  D16 (Fermentation industry);  P43 (Sorting, cleaning, waste disposal)
A97 (Miscellaneous goods not specified elsewhere);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  J01 (Separation including e.g. evaporation, crystallisation etc.);  E13 (Heterocyclics)
A97 (Miscellaneous goods not specified elsewhere);  H06 (Gaseous and liquid fuels including pollution control);  A23 (Polyamides, polyesters, polycarbonates, alkyds)
D15 (Treating water, industrial waste and sewage);  E23 (Heterocyclic);  D16 (Fermentation industry)
A97 (Miscellaneous goods not specified elsewhere);  D16 (Fermentation industry);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  D23 (Oils, fats and waxes)
A26 (Other condensation polymers, silicone polymers, polymides);  E17 (Other aliphatics);  H02 (Distillation, sorption and solvent extraction);  J01 (Separation including e.g. evaporation, crystallisation etc.);  A41 (Monomers, Condensants (see also Section E));  A97 (Miscellaneous goods not specified elsewhere);  H04 (Petroleum processing; treating, cracking, reforming)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H01 (Obtaining crude oil and natural gas, exploration, drilling, well completion, production and treatment);  J01 (Separation including e.g. evaporation, crystallisation etc.);  H06 (Gaseous and liquid fuels including pollution control);  J07 (Refrigeration, ice, gas liquefaction/solidification);  Q75 (Refrigeration, liquefaction)
A97 (Miscellaneous goods not specified elsewhere);  D23 (Oils, fats and waxes);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  J04 (Chemical/physical processes and apparatus including catalysis);  E17 (Other aliphatics)
B04 (Natural products and polymers, testing, compounds of unknown structure);  D16 (Fermentation industry);  L02 (Refractories, ceramics, cement);  D15 (Treating water, industrial waste and sewage)
D15 (Treating water, industrial waste and sewage);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  J03 (Electrochemical processes and electrophoresis including electrolysis);  P43 (Sorting, cleaning, waste disposal)
E12 (Organometallics);  H06 (Gaseous and liquid fuels including pollution control)
E17 (Other aliphatics);  H01 (Obtaining crude oil and natural gas, exploration, drilling, well completion, production and treatment);  H03 (Large scale transportation and storage systems);  H04 (Petroleum processing; treating, cracking, reforming);  H06 (Gaseous and liquid fuels including pollution control);  Q75 (Refrigeration, liquefaction)
D16 (Fermentation industry);  H06 (Gaseous and liquid fuels including pollution control);  H04 (Petroleum processing; treating, cracking, reforming)
A97 (Miscellaneous goods not specified elsewhere);  A23 (Polyamides, polyesters, polycarbonates, alkyds);  V05 (Valves, Discharge Tubes and CRTs)
A95 (Transport - including vehicle parts, tyres and armaments);  H06 (Gaseous and liquid fuels including pollution control);  A25 (Polyurethanes, polyethers)
E35 (Ammonia, cyanogen and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds)
E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  J01 (Separation including e.g. evaporation, crystallisation etc.);  J02 (Mixing, crushing, spraying);  J08 (Heat transfer and drying)
A35 (Other processing; vulcanisation, welding of plastics, adhesive processes);  D16 (Fermentation industry);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control)
A81 (Adhesives, binders);  G02 (Inks, paints, polishes);  D22 (Sterilising, bandages, dressing and skin-protection agents);  H06 (Gaseous and liquid fuels including pollution control);  L03 (Electro-(in)organic, chemical features of electrical devices);  A13 (Aromatic mono-olefins, including polystyrene);  A14 (Other substituted mono-olefins, PVC, PTFE);  A82 (Coatings, impregnations, polishes);  A92 (Packaging and containers, ropes, nets);  A96 (Medical, dental, veterinary, cosmetic);  G03 (Adhesives);  D15 (Treating water, industrial waste and sewage);  D21 (Preparations for dental or toilet purposes)
B04 (Natural products and polymers, testing, compounds of unknown structure);  D16 (Fermentation industry);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  D15 (Treating water, industrial waste and sewage)
D23 (Oils, fats and waxes);  H06 (Gaseous and liquid fuels including pollution control);  P42 (Spraying, atomising);  T01 (Digital Computers)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  J03 (Electrochemical processes and electrophoresis including electrolysis);  Q74 (Heating, ranges, ventilating);  X27 (Domestic Electric Appliances)
A11 (Polysaccharides, natural rubber, other natural polymers);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  H06 (Gaseous and liquid fuels including pollution control);  T01 (Digital Computers)
E14 (Aromatics);  H06 (Gaseous and liquid fuels including pollution control);  E17 (Other aliphatics)
H06 (Gaseous and liquid fuels including pollution control);  D15 (Treating water, industrial waste and sewage);  P43 (Sorting, cleaning, waste disposal)
D16 (Fermentation industry);  P41 (Crushing: centrifuging, separating solids);  P43 (Sorting, cleaning, waste disposal);  Q73 (Combustion equipment/processes)
E19 (Other organic compounds general - unknown structure, mixtures);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  H04 (Petroleum processing; treating, cracking, reforming);  H05 (Refinery engineering);  H06 (Gaseous and liquid fuels including pollution control)
D23 (Oils, fats and waxes);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  E33 (Compounds of Be, Mg, Ca, Sr, Ba, Ra, Sc, Y, La, Ac, Al, lanthanides (Rare-earths), Th)
A88 (Mechanical engineering, tools, valves, gears, conveyor belts);  D15 (Treating water, industrial waste and sewage);  B07 (General - tablets, dispensers, catheters);  D16 (Fermentation industry)
A97 (Miscellaneous goods not specified elsewhere);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  J04 (Chemical/physical processes and apparatus including catalysis);  P43 (Sorting, cleaning, waste disposal)
D16 (Fermentation industry);  D15 (Treating water, industrial waste and sewage);  S03 (Scientific Instrumentation, photometry, calorimetry)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  J04 (Chemical/physical processes and apparatus including catalysis);  E17 (Other aliphatics);  S03 (Scientific Instrumentation, photometry, calorimetry);  T06 (Process and Machine Control)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  S02 (Engineering Instrumentation, recording equipment, general testing methods);  S03 (Scientific Instrumentation, photometry, calorimetry)
A35 (Other processing; vulcanisation, welding of plastics, adhesive processes);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  H06 (Gaseous and liquid fuels including pollution control)
H09 (Fuel products not of petroleum origin e.g. coal gasification);  P28 (Kitchen, sanitary equipment)
C04 (Fertilisers including urea and H3PO4 production);  D13 (Other foodstuffs and treatment);  H06 (Gaseous and liquid fuels including pollution control);  D15 (Treating water, industrial waste and sewage);  D16 (Fermentation industry);  T01 (Digital Computers)
B05 (Other organics - aromatics, aliphatic, organo-metallics.);  C06 (Biotechnology, plant genetics, veterinary vaccines);  D16 (Fermentation industry);  H06 (Gaseous and liquid fuels including pollution control);  C03 (Other organic or inorganic compounds and multi-component mixtures);  D13 (Other foodstuffs and treatment);  D23 (Oils, fats and waxes);  T01 (Digital Computers)
D22 (Sterilising, bandages, dressing and skin-protection agents);  D16 (Fermentation industry);  D21 (Preparations for dental or toilet purposes);  D25 (Detergents other than soap);  P34 (Sterilising, syringes, electrotherapy)
A97 (Miscellaneous goods not specified elsewhere);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  P41 (Crushing: centrifuging, separating solids)
D17 (Sugar and starch industry);  E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  D16 (Fermentation industry)
D16 (Fermentation industry);  E19 (Other organic compounds general - unknown structure, mixtures);  H04 (Petroleum processing; treating, cracking, reforming);  J01 (Separation including e.g. evaporation, crystallisation etc.);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H02 (Distillation, sorption and solvent extraction)
B04 (Natural products and polymers, testing, compounds of unknown structure);  D16 (Fermentation industry);  H06 (Gaseous and liquid fuels including pollution control);  J04 (Chemical/physical processes and apparatus including catalysis);  D13 (Other foodstuffs and treatment);  D21 (Preparations for dental or toilet purposes);  P13 (Plant culture, dairy products)
B04 (Natural products and polymers, testing, compounds of unknown structure);  D16 (Fermentation industry);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  H06 (Gaseous and liquid fuels including pollution control);  P43 (Sorting, cleaning, waste disposal)
L03 (Electro-(in)organic, chemical features of electrical devices);  M13 (Coating material with metals);  M14 (Other chemical surface treatments);  X16 (Electrochemical Storage);  X21 (Electric Vehicles)
D15 (Treating water, industrial waste and sewage);  E35 (Ammonia, cyanogen and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  D16 (Fermentation industry);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H09 (Fuel products not of petroleum origin e.g. coal gasification)
H09 (Fuel products not of petroleum origin e.g. coal gasification);  Q66 (Valves, taps cocks);  Q74 (Heating, ranges, ventilating)
D13 (Other foodstuffs and treatment);  E17 (Other aliphatics);  J04 (Chemical/physical processes and apparatus including catalysis);  S03 (Scientific Instrumentation, photometry, calorimetry)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  J04 (Chemical/physical processes and apparatus including catalysis);  E35 (Ammonia, cyanogen and their compounds);  S03 (Scientific Instrumentation, photometry, calorimetry);  T01 (Digital Computers)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  J03 (Electrochemical processes and electrophoresis including electrolysis);  Q74 (Heating, ranges, ventilating);  X25 (Industrial Electric Equipment)
H01 (Obtaining crude oil and natural gas, exploration, drilling, well completion, production and treatment);  H06 (Gaseous and liquid fuels including pollution control);  Q49 (Mining)
B04 (Natural products and polymers, testing, compounds of unknown structure);  D16 (Fermentation industry);  A89 (Photographic, laboratory equipment, optical)
A97 (Miscellaneous goods not specified elsewhere);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  J01 (Separation including e.g. evaporation, crystallisation etc.);  H02 (Distillation, sorption and solvent extraction);  H04 (Petroleum processing; treating, cracking, reforming)
A35 (Other processing; vulcanisation, welding of plastics, adhesive processes);  H09 (Fuel products not of petroleum origin e.g. coal gasification);  H06 (Gaseous and liquid fuels including pollution control);  H07 (Lubricants and lubrication)
E17 (Other aliphatics);  H06 (Gaseous and liquid fuels including pollution control);  H08 (Petroleum products other than fuels and lubricants);  H09 (Fuel products not of petroleum origin e.g. coal gasification)
A85 (Electrical applications);  D13 (Other foodstuffs and treatment);  E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  L03 (Electro-(in)organic, chemical features of electrical devices);  X16 (Electrochemical Storage)
E36 (Non-metallic elements, semi-metals (Se, Te, B, Si) and their compounds);  H06 (Gaseous and liquid fuels including pollution control);  J04 (Chemical/physical processes and apparatus including catalysis);  E17 (Other aliphatics);  J01 (Separation including e.g. evaporation, crystallisation etc.)
A41 (Monomers, Condensants (see also Section E));  E17 (Other aliphatics);  J04 (Chemical/physical processes and apparatus including catalysis);  L03 (Electro-(in)organic, chemical features of electrical devices);  E35 (Ammonia, cyanogen and their compounds);  X16 (Electrochemical Storage)
C06 (Biotechnology, plant genetics, veterinary vaccines);  D16 (Fermentation industry);  H06 (Gaseous and liquid fuels including pollution control);  D13 (Other foodstuffs and treatment);  P13 (Plant culture, dairy products)