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heating (117401) 117401
lighting (117400) 117400
mechanical engineering (117396) 117396
blasting (117395) 117395
weapons (117395) 117395
engineering elements and units (114301) 114301
general measures for producing and maintaining effectivefunctioning of machines or installations (114301) 114301
thermal insulation in general (114301) 114301
pipes (114038) 114038
joints or fittings for pipes (114000) 114000
means for thermal insulation in general (114000) 114000
supports for pipes, cables or protective tubing (114000) 114000
performing operations (28930) 28930
transporting (28930) 28930
general tagging of cross-sectional technologies spanning over several sections of the ipc (17895) 17895
general tagging of new technological developments (17895) 17895
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (17895) 17895
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fixed constructions (13329) 13329
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electricity (10166) 10166
working of plastics (8215) 8215
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after-treatment of the shaped products, e.g. repairing (7606) 7606
shaping of material in a plastic state, not otherwise providedfor (7606) 7606
shaping or joining of plastics (7606) 7606
generation (7549) 7549
conversion or distribution of electric power (7543) 7543
installation of electric cables or lines, or of combinedoptical and electric cables or lines (7336) 7336
physics (6092) 6092
chemistry (5946) 5946
metallurgy (5810) 5810
storing of distributing gases or liquids (5392) 5392
devices for fastening or securing constructional elements ormachine parts together, e.g. nails, bolts, circlips, clamps,clips, wedges, joints or jointing (5054) 5054
mining (4816) 4816
earth drilling (4813) 4813
human necessities (4776) 4776
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (4577) 4577
earth drilling, e.g. deep drilling (4317) 4317
obtaining oil, gas, water, soluble or meltable materials or aslurry of minerals from wells (4317) 4317
pipe-line systems (4286) 4286
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vehicles in general (4084) 4084
water supply (3967) 3967
sewerage (3959) 3959
layered products (3911) 3911
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (3911) 3911
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conveying (3302) 3302
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packing (3302) 3302
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combustion engines (3219) 3219
hot-gas or combustion-product engine plants (3219) 3219
indexing scheme associated with subclass b29c, relating to particulararticles (3001) 3001
technologies or applications for mitigation or adaptation againstclimate change (2934) 2934
gas-flow silencers or exhaust apparatus for internalcombustion engines (2911) 2911
gas-flow silencers or exhaust apparatus for machines orengines in general (2911) 2911
indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials (2549) 2549
basic electric elements (2485) 2485
mechanical metal-working without essentially removingmaterial (2474) 2474
punching metal (2474) 2474
machine tools (2460) 2460
metal-working not otherwise provided for (2455) 2455
supplying combustion engines in general, with combustiblemixtures or constituents thereof (2253) 2253
packages (2094) 2094
accessories, closures, or fittings therefor (2093) 2093
containers for storage or transport of articles or materials,e.g. bags, barrels, bottles, boxes, cans, cartons, crates,drums, jars, tanks, hoppers, forwarding containers (2093) 2093
packaging elements (2093) 2093
compositions based thereon (2061) 2061
organic macromolecular compounds (2061) 2061
their preparation or chemical working-up (2061) 2061
hygiene (1933) 1933
medical or veterinary science (1932) 1932
producing particular articles from plastics or from substancesin a plastic state (1896) 1896
sewers (1864) 1864
cesspools (1860) 1860
air-conditioning, air-humidification, ventilation, use of aircurrents for screening (1791) 1791
heat exchange in general (1774) 1774
physical or chemical processes or apparatus in general (1736) 1736
ceilings (1733) 1733
floors (1733) 1733
general building constructions (1733) 1733
insulation or other protection of buildings (1733) 1733
roofs (1733) 1733
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Robarts - Stacks (62) 62
Music - Stacks (34) 34
UTL at Downsview - May be requested (33) 33
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Collection Dvlpm't (Acquisitions) - Vendor file (19) 19
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German (77638) 77638
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