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Journal Article (15514) 15514
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science & technology (10889) 10889
color (9074) 9074
physics (6534) 6534
life sciences & biomedicine (6501) 6501
chemistry (5037) 5037
technology (4318) 4318
optics (4167) 4167
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 (3827) 3827
frequency-changing (3827) 3827
non-linear optics (3827) 3827
optical analogue/digital converters (3827) 3827
optical logic elements (3827) 3827
techniques or procedures for the operation thereof (3827) 3827
physical sciences (3277) 3277
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transporting (3185) 3185
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dyes (3027) 3027
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humans (2558) 2558
color removal (2478) 2478
basic electric elements (2319) 2319
photography (2283) 2283
holography (2214) 2214
cinematography (2212) 2212
electrography (2203) 2203
chemical surface treatment (2163) 2163
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (2163) 2163
coating material with metallic material (2163) 2163
coating metallic material (2163) 2163
diffusion treatment of metallic material (2163) 2163
inhibiting corrosion of metallic material or incrustation ingeneral (2163) 2163
multi-step processes for surface treatment of metallicmaterial involving at least one process provided for in classc23 and at least oneprocess covered by subclass c21d or c22f or class c25 (2040) 2040
non-mechanical removal of metallic material from surface (2040) 2040
semiconductor devices (1955) 1955
electric solid state devices not otherwise provided for (1951) 1951
environmental sciences & ecology (1912) 1912
printing (1912) 1912
stamps (1854) 1854
lining machines (1853) 1853
typewriters (1853) 1853
colour printing (1789) 1789
printing, duplicating, marking, or copying processes (1788) 1788
lighting (1771) 1771
colour (1758) 1758
environmental sciences (1689) 1689
auxiliary processes in photography (1619) 1619
photographic processes, e.g. cine, x-ray, colour,stereo-photographic processes (1619) 1619
photosensitive materials for photographic purposes (1619) 1619
female (1587) 1587
heating (1567) 1567
mechanical engineering (1529) 1529
analysis (1514) 1514
weapons (1500) 1500
blasting (1499) 1499
biological and medical sciences (1468) 1468
male (1443) 1443
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 (1372) 1372
functional features or details of lighting devices or systemsthereof (1358) 1358
structural combinations of lighting devices with otherarticles, not otherwise provided for (1358) 1358
exact sciences and technology (1348) 1348
wastewater treatment (1299) 1299
adsorption (1146) 1146
engineering, environmental (1094) 1094
applied sciences (1084) 1084
fundamental and applied biological sciences. psychology (1081) 1081
animals (1080) 1080
paints (1013) 1013
adhesives (975) 975
apparatus specially adapted therefor (957) 957
materials therefor (957) 957
originals therefor (957) 957
photomechanical production of textured or patterned surfaces,e.g. for printing, for processing of semiconductordevices (957) 957
image color analysis (933) 933
materials science (927) 927
polishes (926) 926
miscellaneous applications of materials (925) 925
miscellaneous compositions (925) 925
natural resins (925) 925
adult (915) 915
food science & technology (911) 911
general tagging of cross-sectional technologies spanning over several sections of the ipc (909) 909
general tagging of new technological developments (909) 909
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (909) 909
computer science (882) 882
pollution (881) 881
engineering, chemical (873) 873
algorithms (865) 865
non-portable lighting devices (825) 825
systems thereof (825) 825
vehicle lighting devices specially adapted for vehicleexteriors (825) 825
wastewater (822) 822
water resources (816) 816
studies (815) 815
waste water (779) 779
effluents (777) 777
electric techniques not otherwise provided for (773) 773
removal (770) 770
engineering, electrical & electronic (765) 765
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Robarts - Stacks (8) 8
Engineering & Comp. Sci. - Stacks (7) 7
Online Resources - Online (7) 7
Collection Dvlpm't (Acquisitions) - Vendor file (6) 6
Gerstein Science - Stacks (6) 6
Victoria University E.J. Pratt - Stacks (2) 2
Collection Dvlpm't (Acquisitions) - Closed Orders (1) 1
Faculty of Information - Stacks (1) 1
New College (Ivey) - Stacks (1) 1
Robarts - Course Reserves (1) 1
UTL at Downsview - May be requested (1) 1
UofT at Mississauga - Stacks (1) 1
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English (26342) 26342
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German (661) 661
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