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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 OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOLSUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL (surface treatment C03C)
C03B 1/00
Melting the raw material
C03B 1/00
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Preparing the batches
C03B 3/00
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Charging the melting furnaces
C03B 5/00
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Melting in furnacesFurnaces so far as specially adapted for glass manufacture
C03B 7/00
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Distributors for the molten glassMeans for taking-off charges of molten glassProducing the gob
C03B 8/00

C03B 8/00
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Production of glass by other processes than melting processes (C03B 37/014 takes precedence; preparation of finely divided silica, in general C01B 33/18) [4]
C03B 9/00
Shaping of glass
C03B 9/00
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Blowing glassProduction of hollow glass articles
C03B 11/00
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Pressing glass
C03B 13/00
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Rolling glass
C03B 15/00
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Drawing glass upwardly from the melt
C03B 17/00
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Forming glass by flowing out, pushing-out, or drawing downwardly or laterally from forming slits or by overflowing over lips
C03B 18/00
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Shaping glass in contact with the surface of a liquid
C03B 19/00
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Other methods of shaping glass (manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags C03B 37/00)
C03B 20/00
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Processes specially adapted for the production of quartz or fused silica articles [3]
C03B 21/00
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Severing glass sheets, tubes, or rods while still plastic
C03B 23/00

C03B 23/00
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Re-forming shaped glass (re-forming fibres or filaments C03B 37/14)
C03B 25/00
After-treatment of glass product
C03B 25/00
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Annealing glass products (after-treatment of fibres C03B 37/10)
C03B 27/00
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Tempering glass products (after-treatment of fibres C03B 37/10)
C03B 29/00
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Reheating glass products for softening or fusing their surfacesFire-polishingFusing of margins (after-treatment of fibres C03B 37/10)
C03B 31/00
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Manufacture of rippled or crackled glass
C03B 32/00
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Thermal after-treatment of glass products not provided for in groups C03B 25/00-C03B 31/00, e.g. crystallisation, eliminating gas inclusions or other impurities (after-treatment of fibres C03B 37/10) [2]
C03B 33/00
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Severing cooled glass (severing glass fibres C03B 37/16)
C03B 35/00
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Transporting of glass products during their manufacture (conveying systems for fragile sheets, e.g. glass, B65G 49/06) [2]
C03B 37/00

C03B 37/00
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Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
C03B 40/00
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Preventing adhesion between glass and glass or between glass and the means used to shape it [3]
C03B 40/02
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by lubricationUse of materials as release or lubricating compositions [3]
C03B 40/027
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. . Apparatus for applying lubricants to glass shaping moulds or tools [5]
C03B 40/033
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. . Means for preventing adhesion between glass and glass [5]
C03B 40/04
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using gas [3]
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
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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