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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
C02
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C03
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GLASSMINERAL OR SLAG WOOL
C04
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CEMENTSCONCRETEARTIFICIAL STONECERAMICSREFRACTORIES [4]
C04B
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LIMEMAGNESIASLAGCEMENTSCOMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALSARTIFICIAL STONECERAMICS (devitrified glass-ceramics C03C 10/00)REFRACTORIES (alloys based on refractory metals C22C)TREATMENT OF NATURAL STONE [4]
C04B 2/00
LimeMagnesiaSlag
C04B 2/00
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Lime, magnesia or dolomite [4]
C04B 5/00
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Treatment of molten slag (manufacture of slag wool C03B; treatment of slag in or for the production of metals C21B, C22B)Artificial stone from molten slag [4]
C04B 7/00
Cements
C04B 7/00
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Hydraulic cements
C04B 9/00
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Magnesium cements or silimar cements
C04B 11/00
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Calcium sulfate cements
C04B 12/00
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Cements not provided for in groups C04B 7/00-C04B 11/00 [4]
C04B 14/00
Use of materials as fillers for mortars, concrete or artificial stone [4]
C04B 14/00
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Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stoneTreatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone (reinforcing elements for building E04C 5/00) [4]
C04B 16/00
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Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stoneTreatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone (reinforcing elements for building E04C 5/00) [4]
C04B 18/00
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Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stoneTreatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone (reinforcing elements for building E04C 5/00) [4]
C04B 20/00
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Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B 14/00-C04B 18/00 and characterised by shape or grain distributionTreatment of materials according to more than one of the groups C04B 14/00-C04B 18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stoneExpanding or defibrillating materials (reinforcing elements for building E04C 5/00) [4]
C04B 22/00
Use of materials as active ingredients [4]
C04B 22/00
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Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators [4]
C04B 24/00
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Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers [4]
C04B 26/00
Compositions of mortars, concrete or artificial stone [4]
C04B 26/00
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Compositions of mortars, concrete or artificial stone, containing only organic binders [4]
C04B 28/00
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Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements [4]
C04B 30/00
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Compositions for artificial stone, not containing binders (artificial stone from molten slag C04B 5/00) [4]
C04B 32/00
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Artificial stone not provided for in other groups of this subclass (artificial stone from molten slag C04B 5/00) [4]
C04B 33/00
Ceramics
C04B 33/00
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Clay-wares (monolithic refractories or refractory mortars C04B 35/66; porous products C04B 38/00) [2]
C04B 35/00
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Shaped ceramic products characterised by their compositionCeramic compositions (containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents C22C)Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products [4]
C04B 35/01
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based on oxides [6]
C04B 35/03
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. . based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite [6]
C04B 35/035
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. . . Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon [6]
C04B 35/04
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. . . based on magnesium oxide [6]
C04B 35/043
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. . . . Refractories from grain sized mixtures [6]
C04B 35/047
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. . . . . containing chromium oxide or chrome ore [6]
C04B 35/05
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. . . . Refractories by fusion casting [6]
C04B 35/053
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. . . . Fine ceramics [6]
C04B 35/057
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. . . based on calcium oxide [6]
C04B 35/06
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. . . based on oxide mixtures derived from dolomite
C04B 35/08
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. . based on beryllium oxide [6]
C04B 35/10
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. . based on aluminium oxide [6]
C04B 35/101
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. . . Refractories from grain sized mixtures [6]
C04B 35/103
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. . . . containing non-oxide refractory materials, e.g. carbon (C04B 35/106 takes precedence) [6]
C04B 35/105
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. . . . containing chromium oxide or chrome ore [6]
C04B 35/106
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. . . . containing zirconium oxide or zircon (ZrSiO4) [6]
C04B 35/107
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. . . Refractories by fusion casting [6]
C04B 35/109
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. . . . containing zirconium oxide or zircon (ZrSiO4) [6]
C04B 35/111
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. . . Fine ceramics [6]
C04B 35/113
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. . . . based on beta-aluminium oxide [6]
C04B 35/115
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. . . . Translucent or transparent products [6]
C04B 35/117
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. . . . Composites [6]
C04B 35/119
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. . . . . with zirconium oxide [6]
C04B 35/12
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. . based on chromium oxide (C04B 35/047, C04B 35/105 take precedence) [6]
C04B 35/14
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. . based on silica [6]
C04B 35/16
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. . based on silicates other than clay [6]
C04B 35/18
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. . . rich in aluminium oxide [6]
C04B 35/185
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. . . . Mullite [6]
C04B 35/19
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. . . . Alkali metal aluminosilicates, e.g. spodumene [6]
C04B 35/195
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. . . . Alkaline earth aluminosilicates, e.g. cordierite [6]
C04B 35/20
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. . . rich in magnesium oxide [6]
C04B 35/22
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. . . rich in calcium oxide [6]
C04B 35/26
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. . based on ferrites [2, 6]
C04B 35/28
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. . . with nickel oxide as the principal oxide [2, 6]
C04B 35/30
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. . . . with zinc oxide [2, 6]
C04B 35/32
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. . . with cobalt oxide as the principal oxide [2, 6]
C04B 35/34
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. . . . with zinc oxide [2, 6]
C04B 35/36
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. . . with manganese oxide as the principal oxide [2, 6]
C04B 35/38
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. . . . with zinc oxide [2, 6]
C04B 35/40
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. . . with rare earth oxide [2, 6]
C04B 35/42
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. . based on chromites (C04B 35/047, C04B 35/105 take precedence) [2, 6]
C04B 35/44
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. . based on aluminates [2, 6]
C04B 35/443
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. . . Magnesium aluminate spinel [6]
C04B 35/447
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. . based on phosphates [6]
C04B 35/45
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. . based on copper oxide or solid solutions thereof with other oxides [6]
C04B 35/453
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. . based on zinc, tin or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates [6]
C04B 35/457
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. . . based on tin oxides or stannates [6]
C04B 35/46
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. . based on titanium oxides or titanates (containing also zirconium or hafnium oxides, zirconates or hafnates C04B 35/49) [6]
C04B 35/462
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. . . based on titanates [6]
C04B 35/465
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. . . . based on alkaline earth metal titanates [6]
C04B 35/468
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. . . . . based on barium titanates [6]
C04B 35/47
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. . . . . based on strontium titanates [6]
C04B 35/472
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. . . . based on lead titanates [6]
C04B 35/475
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. . . . based on bismuth titanates [6]
C04B 35/478
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. . . . based on aluminium titanates [6]
C04B 35/48
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. . based on zirconium or hafnium oxides or zirconates or hafnates [6]
C04B 35/482
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. . . Refractories from grain sized mixtures [6]
C04B 35/484
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. . . Refractories by fusion casting [6]
C04B 35/486
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. . . Fine ceramics [6]
C04B 35/488
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. . . . Composites [6]
C04B 35/49
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. . . containing also titanium oxide or titanates [3, 6]
C04B 35/491
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. . . . based on lead zirconates and lead titanates [6]
C04B 35/493
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. . . . . containing also other lead compounds [6]
C04B 35/495
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. . based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates [6]
C04B 35/497
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. . . based on solid solutions with lead oxide [6]
C04B 35/499
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. . . . containing also titanates [6]
C04B 35/50
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based on rare earth compounds
C04B 35/505
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. . based on yttrium oxide [6]
C04B 35/51
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based on compounds of actinides [2]
C04B 35/515
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based on non-oxides (C04B 35/50, C04B 35/51 take precedence) [6]
C04B 35/52
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. . based on carbon, e.g. graphite [6]
C04B 35/524
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. . . obtained from polymer precursors, e.g. glass-like carbon material [6]
C04B 35/528
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. . . obtained from carbonaceous particles with or without other non-organic components [6]
C04B 35/532
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. . . . containing a carbonisable binder [6]
C04B 35/536
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. . . based on expanded graphite [6]
C04B 35/547
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. . based on sulfides or selenides [6]
C04B 35/553
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. . based on fluorides [6]
C04B 35/56
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. . based on carbides [4]
C04B 35/563
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. . . based on boron carbide [6]
C04B 35/565
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. . . based on silicon carbide [6]
C04B 35/567
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. . . . Refractories from grain sized mixtures [6]
C04B 35/569
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. . . . Fine ceramics [6]
C04B 35/571
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. . . . . obtained from polymer precursors [6]
C04B 35/573
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. . . . . obtained by reaction sintering [6]
C04B 35/575
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. . . . . obtained by pressure sintering [6]
C04B 35/576
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. . . . . obtained by sintering without pressure [6]
C04B 35/577
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. . . . . Composites [6]
C04B 35/58
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. . based on borides, nitrides or silicides [4, 6]
C04B 35/581
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. . . based on aluminium nitride [6]
C04B 35/582
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. . . . Composites [6]
C04B 35/583
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. . . based on boron nitride [6]
C04B 35/5831
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. . . . based on cubic boron nitride [6]
C04B 35/5833
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. . . . based on hexagonal boron nitride [6]
C04B 35/5835
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. . . . Composites [6]
C04B 35/584
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. . . based on silicon nitride [6]
C04B 35/586
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. . . . Refractories from grain sized mixtures [6]
C04B 35/587
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. . . . Fine ceramics [6]
C04B 35/589
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. . . . . obtained from polymer precursors [6]
C04B 35/591
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. . . . . obtained by reaction sintering [6]
C04B 35/593
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. . . . . obtained by pressure sintering (C04B 35/594 takes precedence) [6]
C04B 35/594
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. . . . . obtained by sintering a reaction-sintered product, with or without pressure [6]
C04B 35/596
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. . . . . Composites [6]
C04B 35/597
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. . . based on silicon oxynitrides [6]
C04B 35/599
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. . . . based on silicon aluminium oxynitrides (SIALONS) [6]
C04B 35/622
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Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products [6]
C04B 35/624
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. . Sol-gel processing [6]
C04B 35/626
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. . Preparing or treating the powders individually or as batches [6]
C04B 35/628
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. . . Coating the powders [6]
C04B 35/63
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. . . using additives specially adapted for forming the products [6]
C04B 35/632
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. . . . Organic additives [6]
C04B 35/634
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. . . . . Polymers (C04B 35/636 takes precedence) [6]
C04B 35/636
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. . . . . Polysaccharides or derivatives thereof [6]
C04B 35/638
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. . . . Removal thereof [6]
C04B 35/64
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. . Burning or sintering processes (C04B 33/32 takes precedence) [6]
C04B 35/645
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. . . Pressure sintering [6]
C04B 35/65
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. . . Reaction sintering of free metal- or free silicon-containing compositions [3]
C04B 35/653
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. . Processes involving a melting step [6]
C04B 35/657
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. . . for manufacturing refractories (C04B 35/05, C04B 35/107, C04B 35/484 take precedence) [6]
C04B 35/66
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Monolithic refractories or refractory mortars, including those whether or not containing clay
C04B 35/71
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Ceramic products containing macroscopic reinforcing agents (C04B 35/66 takes precedence) [3, 4]
C04B 35/74
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. . containing shaped metallic materials [2]
C04B 35/76
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. . . Fibres, filaments, whiskers, platelets, or the like [2]
C04B 35/78
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. . containing non-metallic materials [2]
C04B 35/80
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. . . Fibres, filaments, whiskers, platelets, or the like [2]
C04B 35/81
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. . . . Whiskers [6]
C04B 35/82
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. . . . AsbestosGlassFused silica [2]
C04B 35/83
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. . . . Carbon fibres in a carbon matrix [6]
C04B 35/84
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. . . Impregnated or coated materials [2]
C04B 37/00
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Joining burned ceramic articles with other burned ceramic articles or other articles by heating
C04B 38/00

C04B 38/00
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Porous mortars, concrete, artificial stone or ceramic warePreparation thereof (treating slag with gases or gas generating material C04B 5/06) [4, 6]
C04B 40/00
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Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability (by selecting active ingredients C04B 22/00-C04B 24/00; hardening of a well-defined composition C04B 26/00-C04B 28/00; making porous, cellular or lightening C04B 38/00) [4, 6]
C04B 41/00
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After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone (glazes, other than cold glazes, C03C 8/00) [3]
C04B 103/00
Indexing scheme associated with groups C04B 22/00 and C04B 24/00, relating to the function or property of the active ingredients. [6]
C04B 103/00
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Function or property of the active ingredients [6]
C04B 111/00
Indexing scheme associated with groups C04B 26/00-C04B 32/00, relating to the function, property or use of the mortars, concrete or artificial stone. [6]
C04B 111/00
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Function, property or use of the mortars, concrete or artificial stone [6]
C05
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FERTILISERSMANUFACTURE THEREOF [4]
C06
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EXPLOSIVESMATCHES
C07
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ORGANIC CHEMISTRY [2]
C08
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ORGANIC MACROMOLECULAR COMPOUNDSTHEIR PREPARATION OR CHEMICAL WORKING-UPCOMPOSITIONS BASED THEREON
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
C12
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BIOCHEMISTRYBEERSPIRITSWINEVINEGARMICROBIOLOGYENZYMOLOGYMUTATION OR GENETIC ENGINEERING
C13
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SUGAR INDUSTRY [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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METALLURGYFERROUS OR NON-FERROUS ALLOYSTREATMENT OF ALLOYS OR NON-FERROUS METALS
C23
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COATING METALLIC MATERIALCOATING MATERIAL WITH METALLIC MATERIALCHEMICAL SURFACE TREATMENTDIFFUSION TREATMENT OF METALLIC MATERIALCOATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERALINHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL [2]
C25
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ELECTROLYTIC OR ELECTROPHORETIC PROCESSESAPPARATUS THEREFOR [4]
C30
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CRYSTAL GROWTH [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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