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Patent (113480) 113480
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chemistry (137185) 137185
inorganic chemistry (115356) 115356
metallurgy (114096) 114096
compounds of the metals beryllium, magnesium, aluminium,calcium, strontium, barium, radium, thorium, or of therare-earth metals (113480) 113480
science & technology (39282) 39282
transporting (38683) 38683
performing operations (38674) 38674
physical or chemical processes or apparatus in general (27810) 27810
aluminum (24380) 24380
physical sciences (24170) 24170
compounds thereof (21782) 21782
indexing scheme relating to structural and physical aspects ofsolid inorganic compounds (20828) 20828
non-metallic elements (20719) 20719
technology (20647) 20647
chemical or physical processes, e.g. catalysis or colloidchemistry (18339) 18339
their relevant apparatus (18339) 18339
dyes (16662) 16662
materials science (16611) 16611
adhesives (16549) 16549
paints (16353) 16353
polishes (16276) 16276
miscellaneous applications of materials (16272) 16272
miscellaneous compositions (16272) 16272
natural resins (16272) 16272
ceramics (15827) 15827
compounds containing metals not covered by subclassesc01d or c01f (14855) 14855
cements (14320) 14320
slag (14297) 14297
concrete (14252) 14252
refractories (14237) 14237
artificial stone (14124) 14124
compositions thereof, e.g. mortars, concrete or like buildingmaterials (14123) 14123
lime, magnesia (14123) 14123
treatment of natural stone (14123) 14123
exact sciences and technology (13341) 13341
general tagging of cross-sectional technologies spanning over several sections of the ipc (13188) 13188
general tagging of new technological developments (13188) 13188
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (13188) 13188
separation (13129) 13129
physics (12412) 12412
aluminum oxide (11599) 11599
chemistry, physical (11145) 11145
materials science, multidisciplinary (10721) 10721
aluminum compounds (10551) 10551
life sciences & biomedicine (9830) 9830
compositions based thereon (9079) 9079
organic macromolecular compounds (9079) 9079
their preparation or chemical working-up (9079) 9079
technologies or applications for mitigation or adaptation againstclimate change (8962) 8962
analysis (8862) 8862
nanotechnology (8282) 8282
ferrous or non-ferrous alloys (8025) 8025
treatment of alloys or non-ferrous metals (8025) 8025
preparation of carbon black (7994) 7994
treatment of inorganic materials, other than fibrous fillers,to enhance their pigmenting or filling properties (7994) 7994
materials for miscellaneous applications, not provided forelsewhere (7982) 7982
aluminium (7698) 7698
organic chemistry (7642) 7642
electricity (7541) 7541
pretreatment of raw materials (7352) 7352
production and refining of metals (7352) 7352
basic electric elements (6900) 6900
use of inorganic or non-macromolecular organic substances ascompounding ingredients (6823) 6823
climate change mitigation technologies in the production orprocessing of goods (6742) 6742
catalysis (6596) 6596
human necessities (6288) 6288
treatment of water, waste water, sewage, or sludge (6254) 6254
metallurgy & metallurgical engineering (6096) 6096
engineering (5792) 5792
alloys (5692) 5692
manufacture or treatment of nanostructures (5517) 5517
measurement or analysis of nanostructures (5517) 5517
specific uses or applications of nanostructures (5517) 5517
applied sciences (5387) 5387
apparatus therefor (5216) 5216
textiles (5216) 5216
catalysts (5094) 5094
compounds of alkali metals, i.e. lithium, sodium, potassium,rubidium, caesium, or francium (4980) 4980
technical subjects covered by former uspc (4956) 4956
adsorption (4656) 4656
research (4619) 4619
hygiene (4598) 4598
medical or veterinary science (4591) 4591
environmental sciences (4477) 4477
paper-making (4358) 4358
production of cellulose (4355) 4355
environmental sciences & ecology (4114) 4114
preparations for medical, dental, or toilet purposes (4112) 4112
general and physical chemistry (4079) 4079
mechanical engineering (4014) 4014
impregnating or coating of paper (3963) 3963
paper not otherwise provided for (3963) 3963
preparation thereof not covered by subclasses d21c or d21d (3963) 3963
pulp compositions (3963) 3963
treatment of finished paper not covered by class b31 or subclass d21g (3963) 3963
heating (3654) 3654
chemistry, multidisciplinary (3536) 3536
compositions of macromolecular compounds (3522) 3522
aluminum silicates (3462) 3462
inventors (3383) 3383
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Gerstein Science - Stacks (13) 13
Engineering & Comp. Sci. - Stacks (8) 8
Online Resources - Online (4) 4
Chemistry (A D Allen) - Stacks (3) 3
UofT at Mississauga - Stacks (3) 3
Collection Dvlpm't (Acquisitions) - Vendor file (2) 2
UTL at Downsview - May be requested (2) 2
Collection Dvlpm't (Acquisitions) - Closed Orders (1) 1
OISE - May be requested in 6-10 wks (1) 1
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English (166445) 166445
Chinese (20107) 20107
French (18428) 18428
German (8817) 8817
Korean (3969) 3969
Russian (3810) 3810
Japanese (3575) 3575
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Chamorro (1) 1
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