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blasting (244492) 244492
details or accessories of furnaces, kilns, ovens, or retorts,in so far as they are of kinds occurring in more than one kindof furnace (244492) 244492
furnaces (244492) 244492
heating (244492) 244492
kilns (244492) 244492
lighting (244492) 244492
mechanical engineering (244492) 244492
ovens (244492) 244492
retorts (244492) 244492
weapons (244492) 244492
chemistry (118285) 118285
metallurgy (118285) 118285
furnaces, kilns, ovens, or retorts in general (89834) 89834
open sintering or like apparatus (89834) 89834
metallurgy of iron (67075) 67075
performing operations (53611) 53611
transporting (53611) 53611
general tagging of cross-sectional technologies spanning over several sections of the ipc (37105) 37105
general tagging of new technological developments (37105) 37105
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (37105) 37105
technologies or applications for mitigation or adaptation againstclimate change (31897) 31897
processing of pig-iron, e.g. refining, manufacture ofwrought-iron or steel (31037) 31037
treatment in molten state of ferrous alloys (31037) 31037
climate change mitigation technologies in the production orprocessing of goods (29296) 29296
electricity (27175) 27175
artificial stone (25603) 25603
cements (25603) 25603
ceramics (25603) 25603
compositions thereof, e.g. mortars, concrete or like buildingmaterials (25603) 25603
concrete (25603) 25603
lime, magnesia (25603) 25603
refractories (25603) 25603
slag (25603) 25603
treatment of natural stone (25603) 25603
manufacture of iron or steel (23901) 23901
ferrous or non-ferrous alloys (21659) 21659
treatment of alloys or non-ferrous metals (21659) 21659
electric techniques not otherwise provided for (20640) 20640
combustion apparatus (20148) 20148
combustion processes (20148) 20148
electric heating (19632) 19632
electric lighting not otherwise provided for (19632) 19632
casting (19608) 19608
powder metallurgy (19608) 19608
pretreatment of raw materials (18920) 18920
production and refining of metals (18920) 18920
general devices for heat treatment of ferrous or non-ferrousmetals or alloys (17920) 17920
making metal malleable by decarburisation, tempering or othertreatments (17920) 17920
modifying the physical structure of ferrous metals (17920) 17920
casting of metals (16753) 16753
casting of other substances by the same processes or devices (16753) 16753
physical or chemical processes or apparatus in general (13790) 13790
physics (10989) 10989
glass (7170) 7170
mineral or slag wool (7170) 7170
measuring (7168) 7168
testing (7168) 7168
basic electric elements (7116) 7116
conveying (7092) 7092
handling thin or filamentary material (7092) 7092
packing (7092) 7092
storing (7092) 7092
manufacture, shaping, or supplementary processes (6823) 6823
technical subjects covered by former uspc (6777) 6777
chemical or physical processes, e.g. catalysis or colloidchemistry (6419) 6419
their relevant apparatus (6419) 6419
separation (6244) 6244
pneumatic tube conveyors (6008) 6008
shop conveyor systems (6008) 6008
transport or storage devices, e.g. conveyors for loading ortipping (6008) 6008
heat exchange in general (5956) 5956
fuels (5511) 5511
lubricants (5511) 5511
peat (5511) 5511
petroleum, gas or coke industries (5511) 5511
technical gases containing carbon monoxide (5511) 5511
consuming waste products by combustion (5374) 5374
cremation furnaces (5374) 5374
engineering elements and units (5110) 5110
general measures for producing and maintaining effectivefunctioning of machines or installations (5110) 5110
thermal insulation in general (5110) 5110
chemical surface treatment (4995) 4995
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (4995) 4995
coating material with metallic material (4995) 4995
coating metallic material (4995) 4995
diffusion treatment of metallic material (4995) 4995
inhibiting corrosion of metallic material or incrustation ingeneral (4995) 4995
inorganic chemistry (4884) 4884
electric solid state devices not otherwise provided for (4810) 4810
semiconductor devices (4810) 4810
casings, linings, walls or doors specially adapted forcombustion chambers, e.g. firebridges (4778) 4778
details of combustion chambers, not otherwise providedfor (4778) 4778
devices for deflecting air, flames or combustion products incombustion chambers (4778) 4778
safety arrangements specially adapted for combustionapparatus (4778) 4778
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (4702) 4702
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (4702) 4702
flues (4632) 4632
removal or treatment of combustion products or combustionresidues (4632) 4632
compounds thereof (3991) 3991
technical subjects covered by former us classification (3931) 3931
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English (196040) 196040
Chinese (47754) 47754
German (30013) 30013
French (29657) 29657
Korean (7299) 7299
Japanese (5913) 5913
Spanish (5476) 5476
Russian (4809) 4809
Portuguese (3258) 3258
Swedish (2067) 2067
Italian (1686) 1686
Finnish (1243) 1243
Norwegian (981) 981
Danish (925) 925
Dutch (747) 747
Polish (736) 736
Ukrainian (485) 485
Czech (356) 356
Turkish (287) 287
Romanian (245) 245
Hungarian (137) 137
Slovak (98) 98
Bulgarian (95) 95
Slovenian (95) 95
Serbian (77) 77
Indonesian (68) 68
Icelandic (47) 47
Croatian (36) 36
Arabic (32) 32
Estonian (19) 19
Greek (19) 19
Lithuanian (17) 17
Hebrew (11) 11
Latvian (8) 8
Bosnian (1) 1
Moldavian (1) 1
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