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Patent (4341703) 4341703
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Magazine Article (31670) 31670
Conference Proceeding (25826) 25826
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Subjects Subjects
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heating (4224112) 4224112
mechanical engineering (4144899) 4144899
lighting (4142622) 4142622
weapons (4141905) 4141905
blasting (4141869) 4141869
transporting (975719) 975719
performing operations (975716) 975716
heat pump systems (875377) 875377
combined heating and refrigeration systems (875308) 875308
liquefaction solidification of gases (875308) 875308
manufacture or storage of ice (875308) 875308
refrigeration or cooling (875308) 875308
engineering elements and units (804748) 804748
general measures for producing and maintaining effectivefunctioning of machines or installations (804748) 804748
thermal insulation in general (804748) 804748
physics (713157) 713157
general tagging of cross-sectional technologies spanning over several sections of the ipc (634611) 634611
general tagging of new technological developments (634611) 634611
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (634611) 634611
ventilating (620873) 620873
ranges (620780) 620780
electricity (605302) 605302
functional features or details of lighting devices or systemsthereof (589698) 589698
structural combinations of lighting devices with otherarticles, not otherwise provided for (589698) 589698
non-portable lighting devices (524384) 524384
systems thereof (524384) 524384
vehicle lighting devices specially adapted for vehicleexteriors (524384) 524384
vehicles in general (462866) 462866
heat-pump systems (451769) 451769
refrigeration machines, plants or systems (451768) 451768
combustion engines (449163) 449163
hot-gas or combustion-product engine plants (449163) 449163
technologies or applications for mitigation or adaptation againstclimate change (395805) 395805
refrigerators (384863) 384863
cold rooms (384561) 384561
cooling or freezing apparatus not covered by any othersubclass (384561) 384561
ice-boxes (384561) 384561
fluid-pressure actuators (336584) 336584
hydraulics or pneumatics in general (336584) 336584
details of fluid-pressure systems, not otherwise provided for (327148) 327148
fluid-pressure actuators, e.g. servo-motors (327148) 327148
systems acting by means of fluids in general (327148) 327148
indexing scheme associated with subclasses f21k, f21l, f21sand f21v, relating to theform or the kind of the light sources or of the colour of thelight emitted (288236) 288236
technical subjects covered by former uspc (279108) 279108
steam engines (275587) 275587
engine plants in general (275576) 275576
machines or engines in general (275576) 275576
electric techniques not otherwise provided for (272267) 272267
controlling (247374) 247374
regulating (247373) 247373
electric heating (236611) 236611
electric lighting not otherwise provided for (235699) 235699
air-conditioning, air-humidification, ventilation, use of aircurrents for screening (230971) 230971
human necessities (230240) 230240
technical subjects covered by former us classification (217991) 217991
basic electric elements (210748) 210748
gearing (203627) 203627
controlling combustion engines (202667) 202667
domestic hot-water supply systems (199348) 199348
domestic- or space-heating systems, e.g. central heatingsystems (199348) 199348
elements or components therefor (199348) 199348
fixed constructions (198852) 198852
optics (194716) 194716
positive displacement machines for liquids (192470) 192470
pumps for liquids or elastic fluids (192470) 192470
generation (192015) 192015
conversion or distribution of electric power (191898) 191898
valves (179803) 179803
actuating-floats (178547) 178547
cocks (178547) 178547
devices for venting or aerating (178547) 178547
taps (178547) 178547
chemistry (176628) 176628
optical elements, systems, or apparatus (172581) 172581
metallurgy (170989) 170989
climate change mitigation technologies related totransportation (165945) 165945
indexing scheme associated with subclasses f21k, f21l, f21sand f21v, relating to usesor applications of lighting devices or systems (156829) 156829
testing (152535) 152535
systems for controlling or regulating non-electric variables (151691) 151691
measuring (151168) 151168
heat exchange in general (147635) 147635
arrangement or mounting of plural diverse prime-movers invehicles (133034) 133034
arrangement or mounting of propulsion units or oftransmissions in vehicles (133034) 133034
arrangements in connection with cooling, air intake, gasexhaust or fuel supply of propulsion units, in vehicles (133034) 133034
auxiliary drives for vehicles (133034) 133034
instrumentation or dashboards for vehicles (133034) 133034
solar heat collectors (132088) 132088
solar heat systems (132088) 132088
physical or chemical processes or apparatus in general (131970) 131970
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (130850) 130850
conjoint control of vehicle sub-units of different type ordifferent function (129773) 129773
control systems specially adapted for hybrid vehicles (129773) 129773
road vehicle drive control systems for purposes not related tothe control of a particular sub-unit (129773) 129773
supplying combustion engines in general, with combustiblemixtures or constituents thereof (128522) 128522
brakes (120568) 120568
clutches (120530) 120530
couplings for transmitting rotation (120512) 120512
combustion apparatus (111508) 111508
combustion processes (111508) 111508
machines or engines for liquids (108981) 108981
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Online Resources - Online (3107) 3107
Engineering & Comp. Sci. - Stacks (328) 328
UTL at Downsview - May be requested (112) 112
Architecture Landscape (Shore + Moffat) - Stacks (54) 54
Gerstein Science - Stacks (44) 44
Robarts - Government Pubs (40) 40
Collection Dvlpm't (Acquisitions) - Vendor file (36) 36
Collection Dvlpm't (Acquisitions) - Closed Orders (31) 31
Robarts - Stacks (20) 20
Engineering & Comp. Sci. - Periodical Stacks (17) 17
Engineering & Comp. Sci. - May be requested in 6-10 wks (15) 15
UofT at Mississauga - Stacks (10) 10
Aerospace - Stacks (9) 9
UofT at Scarborough - Stacks (7) 7
Media Commons - Microtexts (6) 6
Engineering & Comp. Sci. - Reference (5) 5
Architecture Landscape (Shore + Moffat) - Reference (4) 4
Engineering & Comp. Sci. - Missing (3) 3
Engineering & Comp. Sci. - Not Returned (3) 3
Chemistry (A D Allen) - Stacks (2) 2
Engineering & Comp. Sci. - Material is damaged (2) 2
OISE - Curriculum Resources (2) 2
Physics - Stacks (2) 2
Royal Ontario Museum - Stacks (2) 2
Architecture Landscape (Shore + Moffat) - Circulation Desk (1) 1
Earth Sciences (Noranda) - Stacks (1) 1
East Asian (Cheng Yu Tung) - Stacks (1) 1
Engineering & Comp. Sci. - Bindery (1) 1
Gerstein Science - Not Returned (1) 1
Gerstein Science - Periodical Stacks (1) 1
Gerstein Science - Searching (1) 1
Gerstein Science - Theses (1) 1
Mathematical Sciences - Stacks (1) 1
OISE - Stacks (1) 1
Robarts - Course Reserves (1) 1
Royal Ontario Museum - Far Eastern (1) 1
Scarborough Hospital - General (1) 1
St. Michael's College (John M. Kelly) - 1st Floor (1) 1
Thomas Fisher Rare Book - Rare Book (1) 1
Trinity College (John W Graham) - Stacks (1) 1
University Archives - Archives (1) 1
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Language Language
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English (3912908) 3912908
Chinese (871985) 871985
French (716696) 716696
German (621490) 621490
Korean (178790) 178790
Japanese (152758) 152758
Russian (55776) 55776
Spanish (55035) 55035
Portuguese (26947) 26947
Italian (22017) 22017
Swedish (19500) 19500
Danish (13686) 13686
Norwegian (9993) 9993
Polish (9763) 9763
Finnish (8837) 8837
Dutch (8207) 8207
Czech (4111) 4111
Ukrainian (3575) 3575
Turkish (2609) 2609
Romanian (1878) 1878
Greek (1481) 1481
Hungarian (1478) 1478
Slovenian (1307) 1307
Hebrew (880) 880
Slovak (846) 846
Bulgarian (790) 790
Croatian (621) 621
Serbian (489) 489
Lithuanian (446) 446
Arabic (394) 394
Indonesian (383) 383
Latvian (241) 241
Estonian (165) 165
Icelandic (146) 146
Moldavian (23) 23
Chamorro (10) 10
Persian (10) 10
Bosnian (7) 7
Afar (1) 1
Lao (1) 1
Thai (1) 1
Vietnamese (1) 1
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