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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
C03B
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MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03C
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CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELSSURFACE TREATMENT OF GLASSSURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGSJOINING GLASS TO GLASS OR OTHER MATERIALS
C03C 1/00
Chemical composition of glasses, glazes, or vitreous enamels
C03C 1/00
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Ingredients generally applicable to manufacture of glasses, glazes or vitreous enamels
C03C 3/00
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Glass compositions (glass batch compositions C03C 6/00) [4]
C03C 4/00
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Compositions for glass with special properties [4]
C03C 6/00
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Glass batch compositions (single ingredients of batch compositions C03C 1/00) [4]
C03C 8/00
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EnamelsGlazes (cold glazes for ceramics C04B 41/86)Fusion seal compositions being frit compositions having non-frit additions [4]
C03C 10/00
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Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition [4]
C03C 10/02
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Non-silica and non-silicate crystalline phase, e.g. spinel, barium titanate [4]
C03C 10/04
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Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase [4]
C03C 10/06
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. . Divalent metal oxide aluminosilicate crystalline phase, e.g. anorthite, slagcerams [4]
C03C 10/08
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. . . Magnesium aluminosilicate, e.g. cordierite [4]
C03C 10/10
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. . Alkali metal aluminosilicate crystalline phase [4]
C03C 10/12
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. . . Lithium aluminosilicate, e.g. spodumene, eucryptite [4]
C03C 10/14
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Silica crystalline phase, e.g. stuffed quartz, cristobalite [4]
C03C 10/16
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Halogen-containing crystalline phase [4]
C03C 11/00
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Multi-cellular glass
C03C 12/00
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Powdered glass (C03C 8/02 takes precedence)Bead compositions [4]
C03C 13/00
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Fibre or filament compositions (manufacture of fibres or filaments C03B 37/00)
C03C 14/00
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Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix (glass batch compositions C03C 6/00; devitrified glass-ceramics C03C 10/00) [4]
C03C 15/00
Surface treatment of glassSurface treatment of fibres or filaments from glass, minerals or slags
C03C 15/00
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Surface treatment of glass, not in the form of fibres or filaments, by etching (etching or surface-brightening compositions, in general C09K 13/00) [2]
C03C 17/00
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Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating (optical coatings of optical elements G02B 1/10)
C03C 19/00
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Surface treatment of glass, not in the form of fibres or filaments, by mechanical means (sand-blasting, grinding, or polishing glass B24)
C03C 21/00
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Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
C03C 23/00
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Other surface treatment of glass not in the form of fibres or filaments
C03C 25/00
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Surface treatment of fibres or filaments from glass, minerals, or slags
C03C 27/00
Joining glass to glass or to other materials (fusion seal compositions C03C 8/24)
C03C 27/00
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Joining pieces of glass to pieces of other inorganic materialJoining glass to glass other than by fusing (C03C 17/00 takes precedence; wired glass C03B; joining glass to ceramics C04)
C03C 29/00
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Joining metals with the aid of glass
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)
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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