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Patent (915032) 915032
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welding (915215) 915215
machine tools (915057) 915057
cladding or plating by soldering or welding (915032) 915032
cutting by applying heat locally, e.g. flame cutting (915032) 915032
metal-working not otherwise provided for (915032) 915032
performing operations (915032) 915032
soldering or unsoldering (915032) 915032
transporting (915032) 915032
working by laser beam (915032) 915032
electricity (166118) 166118
chemistry (110898) 110898
metallurgy (110325) 110325
basic electric elements (106832) 106832
general tagging of cross-sectional technologies spanning over several sections of the ipc (80460) 80460
general tagging of new technological developments (80460) 80460
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (80460) 80460
mechanical engineering (76475) 76475
heating (76267) 76267
lighting (76190) 76190
blasting (76188) 76188
weapons (76182) 76182
physics (70732) 70732
electric techniques not otherwise provided for (67764) 67764
technical subjects covered by former uspc (63002) 63002
semiconductor devices (61627) 61627
electric solid state devices not otherwise provided for (61597) 61597
technical subjects covered by former us classification (57527) 57527
printed circuits (52414) 52414
casings or constructional details of electric apparatus (52272) 52272
manufacture of assemblages of electrical components (52272) 52272
ferrous or non-ferrous alloys (49245) 49245
treatment of alloys or non-ferrous metals (49245) 49245
alloys (47113) 47113
mechanical metal-working without essentially removingmaterial (45969) 45969
punching metal (45969) 45969
engineering elements and units (29383) 29383
general measures for producing and maintaining effectivefunctioning of machines or installations (29383) 29383
thermal insulation in general (29383) 29383
combined operations (26730) 26730
other working of metal (26730) 26730
universal machine tools (26730) 26730
chemical surface treatment (25503) 25503
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (25502) 25502
coating material with metallic material (25502) 25502
coating metallic material (25502) 25502
diffusion treatment of metallic material (25502) 25502
inhibiting corrosion of metallic material or incrustation ingeneral (25502) 25502
powder metallurgy (23146) 23146
optics (23134) 23134
casting (23101) 23101
testing (22378) 22378
measuring (22275) 22275
working of plastics (22206) 22206
working of substances in a plastic state, in general (22206) 22206
technologies or applications for mitigation or adaptation againstclimate change (22160) 22160
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (21809) 21809
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (21809) 21809
after-treatment of the shaped products, e.g. repairing (21068) 21068
shaping of material in a plastic state, not otherwise providedfor (21068) 21068
shaping or joining of plastics (21068) 21068
working or processing of sheet metal or metal tubes, rods orprofiles without essentially removing material (20811) 20811
layered products (19447) 19447
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (19447) 19447
optical elements, systems, or apparatus (18580) 18580
human necessities (17719) 17719
metallurgy of iron (17047) 17047
general devices for heat treatment of ferrous or non-ferrousmetals or alloys (16248) 16248
making metal malleable by decarburisation, tempering or othertreatments (16248) 16248
modifying the physical structure of ferrous metals (16248) 16248
making metallic powder (16192) 16192
manufacture of articles from metallic powder (16192) 16192
working metallic powder (16192) 16192
hand tools (15609) 15609
manipulators (15606) 15606
portable power-driven tools (15605) 15605
engine plants in general (15520) 15520
machines or engines in general (15520) 15520
steam engines (15520) 15520
auxiliary operations used in connection with metal-workingwithout essentially removing material (14289) 14289
manufacture of metal sheets, wire, rods, tubes or profiles,otherwise than by rolling (14289) 14289
heat exchange in general (14254) 14254
devices using stimulated emission (14088) 14088
combinations or associations of metal-working machines, notdirected to a particular result (13992) 13992
details, components, or accessories for machine tools, e.g.arrangements for copying or controlling (13992) 13992
machine tools in general characterised by the construction ofparticular details or components (13992) 13992
packing (13945) 13945
conveying (13944) 13944
handling thin or filamentary material (13944) 13944
storing (13944) 13944
fixed constructions (13578) 13578
details of heat-exchange and heat-transfer apparatus, ofgeneral application (13367) 13367
climate change mitigation technologies in the production orprocessing of goods (12890) 12890
controlling (11606) 11606
regulating (11605) 11605
glass (11581) 11581
mineral or slag wool (11373) 11373
non-positive displacement machines or engines, e.g. steamturbines (11335) 11335
current collectors (11308) 11308
line connectors (11303) 11303
hygiene (11203) 11203
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Online Resources - Online (200) 200
Engineering & Comp. Sci. - Stacks (98) 98
UTL at Downsview - May be requested (27) 27
Collection Dvlpm't (Acquisitions) - Vendor file (10) 10
Gerstein Science - Stacks (10) 10
Collection Dvlpm't (Acquisitions) - Closed Orders (9) 9
Royal Ontario Museum - Stacks (7) 7
Engineering & Comp. Sci. - May be requested in 6-10 wks (4) 4
Robarts - Stacks (3) 3
Engineering & Comp. Sci. - Missing (2) 2
Media Commons - Microtexts (2) 2
UofT at Mississauga - Stacks (2) 2
Collection Dvlpm't (Acquisitions) - Cancelled Order (1) 1
Earth Sciences (Noranda) - Stacks (1) 1
Engineering & Comp. Sci. - Periodical Stacks (1) 1
Engineering & Comp. Sci. - Reference (1) 1
Gerstein Science - Missing (1) 1
Physics - Stacks (1) 1
Robarts - Storage (1) 1
Sunnybrook Health Sciences Centre - Sunnybrook Stacks (1) 1
Thomas Fisher Rare Book - Rare Book (1) 1
University Archives - Archives (1) 1
UofT at Scarborough - Stacks (1) 1
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English (782662) 782662
Chinese (199572) 199572
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French (106345) 106345
Japanese (35026) 35026
Korean (34014) 34014
Russian (18822) 18822
Spanish (10570) 10570
Portuguese (5222) 5222
Italian (4335) 4335
Swedish (3785) 3785
Finnish (2249) 2249
Dutch (2130) 2130
Danish (1990) 1990
Norwegian (1937) 1937
Polish (1654) 1654
Ukrainian (1044) 1044
Romanian (910) 910
Czech (516) 516
Turkish (392) 392
Hungarian (365) 365
Slovenian (205) 205
Bulgarian (170) 170
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Indonesian (78) 78
Greek (67) 67
Lithuanian (59) 59
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Croatian (57) 57
Hebrew (41) 41
Latvian (35) 35
Estonian (28) 28
Arabic (19) 19
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Moldavian (7) 7
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