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Patent (1190495) 1190495
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physics (1190709) 1190709
measuring (1190451) 1190451
testing (1190451) 1190451
measuring electric variables (1152593) 1152593
measuring magnetic variables (1152593) 1152593
electricity (437662) 437662
basic electric elements (235338) 235338
generation (128219) 128219
conversion or distribution of electric power (128214) 128214
semiconductor devices (115223) 115223
electric solid state devices not otherwise provided for (115200) 115200
counting (100079) 100079
calculating (100077) 100077
computing (100077) 100077
general tagging of cross-sectional technologies spanning over several sections of the ipc (76222) 76222
general tagging of new technological developments (76222) 76222
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (76222) 76222
electric digital data processing (75779) 75779
human necessities (75623) 75623
transporting (73606) 73606
performing operations (73605) 73605
hygiene (71654) 71654
medical or veterinary science (71654) 71654
arrangements for measuring two or more variables not coveredin a single other subclass (67921) 67921
measuring not specially adapted for a specific variable (67921) 67921
measuring or testing not otherwise provided for (67921) 67921
tariff metering apparatus (67921) 67921
surgery (66591) 66591
diagnosis (66579) 66579
identification (66579) 66579
investigating or analysing materials by determining theirchemical or physical properties (64801) 64801
basic electronic circuitry (61679) 61679
electric communication technique (61163) 61163
circuit arrangements or systems for supplying or distributingelectric power (56161) 56161
systems for storing electric energy (56161) 56161
information storage (42550) 42550
processes or means, e.g. batteries, for the direct conversionof chemical into electrical energy (40489) 40489
technologies or applications for mitigation or adaptation againstclimate change (40142) 40142
emergency protective circuit arrangements (38865) 38865
electric techniques not otherwise provided for (35752) 35752
technical subjects covered by former uspc (35404) 35404
pulse technique (34147) 34147
magnets (33608) 33608
transformers (33587) 33587
inductances (33573) 33573
selection of materials for their magnetic properties (33573) 33573
controlling (30676) 30676
regulating (30676) 30676
vehicles in general (30429) 30429
static stores (28224) 28224
measuring angles (26208) 26208
measuring areas (26208) 26208
measuring irregularities of surfaces or contours (26208) 26208
measuring length, thickness or similar lineardimensions (26208) 26208
printed circuits (26117) 26117
casings or constructional details of electric apparatus (26114) 26114
manufacture of assemblages of electrical components (26114) 26114
current collectors (25407) 25407
line connectors (25407) 25407
signalling (24996) 24996
technical subjects covered by former us classification (24903) 24903
mechanical engineering (23802) 23802
heating (23733) 23733
lighting (23707) 23707
blasting (23706) 23706
weapons (23705) 23705
transmission (23213) 23213
transmission of digital information, e.g. telegraphiccommunication (23153) 23153
geophysics (19270) 19270
detecting masses or objects (19227) 19227
gravitational measurements (19227) 19227
electric equipment or propulsion of electrically-propelledvehicles (18680) 18680
electrodynamic brake systems for vehicles, in general (18680) 18680
magnetic suspension or levitation for vehicles (18680) 18680
apparatus for conversion between ac and ac, between ac and dc,or between dc and dc, and for use with mains or similar powersupply systems (16653) 16653
control or regulation thereof (16653) 16653
conversion of dc or ac input power into surge outputpower (16653) 16653
information storage based on relative movement between recordcarrier and transducer (16349) 16349
climate change mitigation technologies related totransportation (15723) 15723
education (14402) 14402
advertising (14390) 14390
display (14390) 14390
seals (14390) 14390
cryptography (14389) 14389
control or regulating systems in general (14366) 14366
functional elements of such systems (14366) 14366
monitoring or testing arrangements for such systems orelements (14366) 14366
transmission systems for measured values, control or similarsignals (14356) 14356
relays (14239) 14239
electric switches (14237) 14237
emergency protective devices (14237) 14237
selectors (14237) 14237
testing static or dynamic balance of machines orstructures (14206) 14206
testing structures or apparatus not otherwise provided for (14206) 14206
optics (13622) 13622
indicating presence, absence, or direction, of movement (13590) 13590
measuring linear or angular speed, acceleration, deceleration,or shock (13590) 13590
information or communication technologies having an impact onother technology areas (13243) 13243
systems integrating technologies related to power networkoperation, communication or information technologies forimproving the electrical power generation, transmission,distribution, management or usage, i.e. smart grids (13243) 13243
chemistry (12802) 12802
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Engineering & Comp. Sci. - Stacks (108) 108
Gerstein Science - Stacks (77) 77
UTL at Downsview - May be requested (28) 28
UofT at Mississauga - Stacks (19) 19
Collection Dvlpm't (Acquisitions) - Closed Orders (14) 14
UofT at Scarborough - Stacks (11) 11
Astronomy & Astrophysics - Ask at library (9) 9
Aerospace - Stacks (7) 7
Collection Dvlpm't (Acquisitions) - Vendor file (7) 7
Online Resources - Online (7) 7
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Physics - Stacks (6) 6
Engineering & Comp. Sci. - May be requested in 6-10 wks (3) 3
Chemistry (A D Allen) - Stacks (2) 2
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Royal Ontario Museum - Stacks (2) 2
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Engineering & Comp. Sci. - Missing (1) 1
Engineering & Comp. Sci. - Withdrawn (1) 1
Indust. Rel's & Hum. Resources (Newman) - Library use only (1) 1
Mathematical Sciences - Stacks (1) 1
Physics - New Books (1) 1
Sunnybrook Health Sciences Centre - Sunnybrook Stacks (1) 1
Victoria University E.J. Pratt - Reference (1) 1
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English (1038150) 1038150
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