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Patent (40253) 40253
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optics (41336) 41336
physics (41329) 41329
optical elements, systems, or apparatus (40100) 40100
electricity (6341) 6341
basic electric elements (3897) 3897
current collectors (2399) 2399
line connectors (2399) 2399
science & technology (2144) 2144
electric communication technique (2127) 2127
optical fibers (2120) 2120
performing operations (2115) 2115
transporting (2115) 2115
transmission (1569) 1569
general tagging of cross-sectional technologies spanning over several sections of the ipc (1489) 1489
general tagging of new technological developments (1489) 1489
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (1489) 1489
technical subjects covered by former uspc (1450) 1450
technology (1401) 1401
physical sciences (1337) 1337
testing (1331) 1331
technical subjects covered by former us classification (1305) 1305
measuring (1281) 1281
connectors (1229) 1229
fiber optics (1201) 1201
engineering (1025) 1025
chemistry (995) 995
exact sciences and technology (924) 924
conversion or distribution of electric power (912) 912
generation (912) 912
installation of electric cables or lines, or of combinedoptical and electric cables or lines (835) 835
semiconductor devices (805) 805
human necessities (795) 795
electric solid state devices not otherwise provided for (794) 794
surgery (724) 724
hygiene (708) 708
medical or veterinary science (708) 708
cables (707) 707
engineering, electrical & electronic (705) 705
devices using stimulated emission (699) 699
diagnosis (685) 685
applied sciences (684) 684
identification (678) 678
testing static or dynamic balance of machines orstructures (662) 662
testing structures or apparatus not otherwise provided for (662) 662
metallurgy (660) 660
electronics (622) 622
optical instruments industry (590) 590
inventors (561) 561
working of plastics (534) 534
working of substances in a plastic state, in general (534) 534
electric, optical and optoelectronic circuits (516) 516
circuit properties (514) 514
polishing (501) 501
optical and optoelectronic circuits (491) 491
grinding (477) 477
selecting (476) 476
mechanical engineering (466) 466
dressing or conditioning of abrading surfaces (462) 462
feeding of grinding, polishing, or lapping agents (462) 462
machines, devices, or processes for grinding or polishing (462) 462
conductors (459) 459
insulators (459) 459
lighting (454) 454
selection of materials for their conductive, insulating ordielectric properties (453) 453
heating (452) 452
weapons (445) 445
blasting (442) 442
physics, applied (434) 434
printed circuits (424) 424
integrated optics. optical fibers and wave guides (420) 420
electric techniques not otherwise provided for (414) 414
after-treatment of the shaped products, e.g. repairing (408) 408
shaping of material in a plastic state, not otherwise providedfor (408) 408
shaping or joining of plastics (408) 408
lasers (405) 405
instruments & instrumentation (394) 394
telecommunications (391) 391
casings or constructional details of electric apparatus (383) 383
manufacture of assemblages of electrical components (383) 383
sensors (381) 381
machine tools (344) 344
metal-working not otherwise provided for (343) 343
glass (340) 340
equipment and supplies (337) 337
cleaning (328) 328
cleaning in general (313) 313
prevention of fouling in general (313) 313
optical fiber cables (301) 301
materials science (291) 291
mineral or slag wool (284) 284
life sciences & biomedicine (279) 279
optische faser (278) 278
devices or arrangements, the optical operation of which ismodified by changing the optical properties of the medium of thedevices or arrangements for the control of the intensity,colour, phase, polarisation or direction of light, e.g.switching, gating, modulating or demodulating (270) 270
frequency-changing (270) 270
non-linear optics (270) 270
optical analogue/digital converters (270) 270
optical logic elements (270) 270
techniques or procedures for the operation thereof (270) 270
optical communication (266) 266
investigating or analysing materials by determining theirchemical or physical properties (261) 261
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Engineering & Comp. Sci. - Stacks (65) 65
Online Resources - Online (14) 14
Collection Dvlpm't (Acquisitions) - Vendor file (13) 13
UTL at Downsview - May be requested (13) 13
Collection Dvlpm't (Acquisitions) - Closed Orders (6) 6
Aerospace - Stacks (5) 5
Engineering & Comp. Sci. - May be requested in 6-10 wks (5) 5
Gerstein Science - Stacks (3) 3
Physics - Stacks (2) 2
Astronomy & Astrophysics - Ask at library (1) 1
Engineering & Comp. Sci. - Missing (1) 1
Media Commons - Microtexts (1) 1
UofT at Mississauga - Stacks (1) 1
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English (45011) 45011
French (7523) 7523
Chinese (6917) 6917
German (3811) 3811
Japanese (1428) 1428
Korean (955) 955
Spanish (415) 415
Russian (171) 171
Portuguese (140) 140
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