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A
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SECTION A — HUMAN NECESSITIES
B
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SECTION B — PERFORMING OPERATIONSTRANSPORTING
C
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SECTION C — CHEMISTRYMETALLURGY
C01
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CHEMISTRY
C01
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INORGANIC CHEMISTRY (processing powders of inorganic compounds preparatory to the manufacturing of ceramic products C04B 35/00; fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide C12P 3/00; obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal C21B, C22B; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis C25B)
C02
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (settling tanks, filtering, e.g. sand filters or screening devices, B01D)
C03
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GLASSMINERAL OR SLAG WOOL
C04
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CEMENTSCONCRETEARTIFICIAL STONECERAMICSREFRACTORIES (alloys based on refractory metals C22C) [4]
C05
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FERTILISERSMANUFACTURE THEREOF (processes or devices for granulating materials, in general B01J 2/00; soil-conditioning or soil-stabilising materials C09K 17/00) [4]
C06
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EXPLOSIVESMATCHES
C07
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ORGANIC CHEMISTRY (such compounds as the oxides, sulfides, or oxysulfides of carbon, cyanogen, phosgene, hydrocyanic acid or salts thereof C01; products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds C01B 33/44; macromolecular compounds C08; dyes C09; fermentation products C12; fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture C12P; production of organic compounds by electrolysis or electrophoresis C25B 3/00, C25B 7/00) [2]
C08
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ORGANIC MACROMOLECULAR COMPOUNDSTHEIR PREPARATION OR CHEMICAL WORKING-UPCOMPOSITIONS BASED THEREON (manufacture or treatment of artificial threads, fibres, bristles or ribbons D01)
C09
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DYESPAINTSPOLISHESNATURAL RESINSADHESIVESCOMPOSITIONS NOT OTHERWISE PROVIDED FORAPPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C10
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PETROLEUM, GAS OR COKE INDUSTRIESTECHNICAL GASES CONTAINING CARBON MONOXIDEFUELSLUBRICANTSPEAT
C11
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ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXESFATTY ACIDS THEREFROMDETERGENTSCANDLES (edible oil or fat compositions A23)
C11B
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PRODUCING (pressing, extraction), REFINING OR PRESERVING FATS, FATTY SUBSTANCES (e.g. lanolin), FATTY OILS OR WAXES, INCLUDING EXTRACTION FROM WASTE MATERIALSESSENTIAL OILSPERFUMES (drying-oils C09F)
C11C
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FATTY ACIDS FROM FATS, OILS OR WAXESCANDLESFATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
C11D
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DETERGENT COMPOSITIONS (preparations specially adapted for washing the hair A61K 8/00, A61Q 5/12; methods or apparatus for disinfection or sterilisation A61L; special washing compositions for cleaning semi-permeable membranes B01D 65/06)USE OF SINGLE SUBSTANCES AS DETERGENTSSOAP OR SOAP-MAKINGRESIN SOAPSRECOVERY OF GLYCEROL
C11D 1/00
Surface-active non-soap detergents
C11D 1/00
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Detergent compositions based essentially on surface-active compoundsUse of these compounds as a detergent
C11D 1/02
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Anionic compounds
C11D 1/04
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. . Carboxylic acids or salts thereof (soap C11D 9/00)
C11D 1/06
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. . . Ether- or thioether carboxylic acids
C11D 1/08
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. . . Polycarboxylic acids containing no nitrogen or sulfur
C11D 1/10
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. . . Amino carboxylic acidsImino carboxylic acidsFatty acid condensates thereof
C11D 1/12
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. . Sulfonic acids or sulfuric acid estersSalts thereof (C11D 3/065 takes precedence)
C11D 1/14
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. . . derived from aliphatic hydrocarbons or mono-alcohols
C11D 1/16
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. . . derived from divalent or polyvalent alcohols
C11D 1/18
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. . . derived from amino alcohols
C11D 1/20
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. . . . Fatty acid condensates
C11D 1/22
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. . . derived from aromatic compounds
C11D 1/24
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. . . . containing ester or ether groups directly attached to the nucleus
C11D 1/26
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. . . derived from heterocyclic compounds
C11D 1/28
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. . . Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
C11D 1/29
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. . . Sulfates of polyoxyalkylene ethers [2]
C11D 1/30
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. . . Sulfonation products derived from lignin
C11D 1/32
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. . Protein hydrolysatesFatty acid condensates thereof
C11D 1/34
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. . Derivatives of acids of phosphorus
C11D 1/36
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. . of unknown constitution
C11D 1/37
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. . Mixtures of compounds all of which are anionic
C11D 1/38
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Cationic compounds
C11D 1/40
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. . Monoamines or polyaminesSalts thereof
C11D 1/42
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. . Amino alcohols or amino ethers
C11D 1/44
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. . . Ethers of polyoxyalkylenes with amino alcoholsCondensation products of epoxyalkanes with amines
C11D 1/46
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. . Esters of carboxylic acids with amino alcoholsEsters of amino carboxylic acids with alcohols
C11D 1/48
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. . N-containing polycondensation products
C11D 1/50
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. . Derivatives of urea, thiourea, cyanamide, guanidine or urethanes
C11D 1/52
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. . Carboxylic amides, alkylolamides or imides (C11D 3/07 takes precedence)
C11D 1/54
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. . Hydrazides of carboxylic acids
C11D 1/56
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. . containing nitro or nitroso groups
C11D 1/58
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. . Heterocyclic compounds
C11D 1/60
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. . Sulfonium or phosphonium compounds
C11D 1/62
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. . Quaternary ammonium compounds
C11D 1/64
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. . of unknown constitution
C11D 1/645
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. . Mixtures of compounds all of which are cationic
C11D 1/65
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. . Mixtures of anionic with cationic compounds
C11D 1/655
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. . . of sulfonated products with alkylolamides of carboxylic acids (C11D 3/066 takes precedence)
C11D 1/66
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Non-ionic compounds
C11D 1/68
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. . AlcoholsOxidation products of paraffin wax, other than acids
C11D 1/70
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. . Phenols
C11D 1/72
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. . Ethers of polyoxyalkylene glycols (C11D 3/075 takes precedence)
C11D 1/722
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. . Ethers of polyoxyalkylenes having mixed oxyalkylene groups [2]
C11D 1/74
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. . Carboxylates or sulfonates of polyoxyalkylene glycols
C11D 1/75
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. . Amino oxides [2]
C11D 1/755
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. . Sulfoxides [2]
C11D 1/76
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. . Synthetic resins containing no nitrogen
C11D 1/78
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. . Neutral esters of acids of phosphorus
C11D 1/79
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. . Phosphine oxides [2]
C11D 1/80
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. . Derivatives of lignin containing no sulfo- or sulfate groups
C11D 1/82
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. . Compounds containing silicon
C11D 1/825
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. . Mixtures of compounds all of which are non-anionic
C11D 1/83
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. . Mixtures of non-ionic with anionic compounds
C11D 1/831
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. . . of sulfonates with ethers of polyoxyalkylenes without phosphates
C11D 1/835
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. . Mixtures of non-ionic with cationic compounds
C11D 1/86
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Mixtures of anionic, cationic, and non-ionic compounds
C11D 1/88
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AmpholytesElectroneutral compounds [2]
C11D 1/90
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. . Betaines [2]
C11D 1/92
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. . Sulfobetaines [2]
C11D 1/94
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. . Mixtures with anionic, cationic or non-ionic compounds [2]
C11D 3/00
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Other compounding ingredients of detergent compositions covered in group C11D 1/00
C11D 7/00

C11D 7/00
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Compositions of detergents based essentially on non-surface-active compounds
C11D 9/00
Soap Detergents
C11D 9/00
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Compositions of detergents based essentially on soap (compositions containing resin soap C11D 15/04)
C11D 10/00

C11D 10/00
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Compositions of detergents, not provided for by any single one of main groups C11D 1/00-C11D 9/00 [2]
C11D 11/00
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Special methods for preparing compositions containing mixtures of detergents
C11D 13/00
Soap or soap-makingResin soaps
C11D 13/00
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Making of soap or soap solutions in generalApparatus therefor (resin soap C11D 15/00)
C11D 15/00
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Manufacture of resin soap or soaps derived from naphthenic acidsCompositions
C11D 17/00

C11D 17/00
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Detergent materials or soaps characterised by their shape or physical properties (shaping soap C11D 13/14)
C11D 19/00
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Recovery of glycerol from a saponification liquor (refining glycerol C07C 31/22)
C12
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BIOCHEMISTRYBEERSPIRITSWINEVINEGARMICROBIOLOGYENZYMOLOGYMUTATION OR GENETIC ENGINEERING
C13
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SUGAR INDUSTRY (polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C) [4]
C14
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SKINSHIDESPELTSLEATHER
C21
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METALLURGY
C21
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METALLURGY OF IRON
C22
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METALLURGY (of iron C21)FERROUS OR NON-FERROUS ALLOYSTREATMENT OF ALLOYS OR NON-FERROUS METALS (general methods or devices for heat treatment of ferrous or non-ferrous metals or alloys C21D; production of metals by electrolysis or electrophoresis C25)
C23
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COATING METALLIC MATERIALCOATING MATERIAL WITH METALLIC MATERIAL (by metallising textiles D06M 11/83; decorating textiles by locally metallising D06Q 1/04)CHEMICAL SURFACE TREATMENTDIFFUSION TREATMENT OF METALLIC MATERIALCOATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (for specific applications, see the relevant places, e.g. for manufacturing resistors H01C 17/06)INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL (treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D, C25F) [2]
C25
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ELECTROLYTIC OR ELECTROPHORETIC PROCESSESAPPARATUS THEREFOR (electrodialysis, electro-osmosis, separation of liquids by electricity B01D; working of metal by the action of a high concentration of electric current B23H; treatment of water, waste water or sewage by electrochemical methods C02F 1/46; surface treatment of metallic material or coating involving at least one process provided for in class C23 and at least one process covered by this class C23C 28/00, C23F 17/00; anodic or cathodic protection C23F; single-crystal growth C30B; metallising textiles D06M 11/83; decorating textiles by locally metallising D06Q 1/04; electrochemical methods of analysis G01N; electrochemical measuring, indicating or recording devices G01R; electrolytic circuit elements, e.g. capacitors, H01G; electrochemical current or voltage generators H01M) [4]
C30
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CRYSTAL GROWTH (separation by crystallisation in general B01D 9/00) [3]
C40
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COMBINATORIAL TECHNOLOGY [2006.01]
C40
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COMBINATORIAL TECHNOLOGY [2006.01]
C99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
D
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SECTION D — TEXTILESPAPER
E
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SECTION E — FIXED CONSTRUCTIONS
F
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SECTION F — MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
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SECTION G — PHYSICS
H
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SECTION H — ELECTRICITY

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