Library of Congress Classification/Class T
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Subclass TA
Subclass TC
Subclass TD
Subclass TE
Subclass TF
Subclass TG
Subclass TH
Subclass TJ
Subclass TK
Subclass TL
Subclass TN
Subclass TP
Subclass TR
Subclass TS
Subclass TT
Subclass TX
CLASS T - TECHNOLOGY
(Click each subclass for details)
| Subclass T | Technology (General) |
|---|---|
| Subclass TA | Engineering (General). Civil engineering |
| Subclass TC | Hydraulic engineering. Ocean engineering |
| Subclass TD | Environmental technology. Sanitary engineering |
| Subclass TE | Highway engineering. Roads and pavements |
| Subclass TF | Railroad engineering and operation |
| Subclass TG | Bridge engineering |
| Subclass TH | Building construction |
| Subclass TJ | Mechanical engineering and machinery |
| Subclass TK | Electrical engineering. Electronics. Nuclear engineering |
| Subclass TL | Motor vehicles. Aeronautics. Astronautics |
| Subclass TN | Mining engineering. Metallurgy |
| Subclass TP | Chemical technology |
| Subclass TR | Photography |
| Subclass TS | Manufactures |
| Subclass TT | Handicrafts. Arts and crafts |
| Subclass TX | Home economics |
Subclass T
| T1-995 | Technology (General) | |||
| T10.5-11.9 | Communication of technical information | |||
| T11.95-12.5 | Industrial directories | |||
| T55-55.3 | Industrial safety. Industrial accident prevention | |||
| T55.4-60.8 | Industrial engineering. Management engineering | |||
| T57-57.97 | Applied mathematics. Quantitative methods | |||
| T57.6-57.97 | Operations research. Systems analysis | |||
| T58.4 | Managerial control systems | |||
| T58.5-58.64 | Information technology | |||
| T58.6-58.62 | Management information systems | |||
| T58.7-58.8 | Production capacity. Manufacturing capacity | |||
| T59-59.2 | Standardization | |||
| T59.5 | Automation | |||
| T59.7-59.77 | Human engineering in industry. Man-machine systems | |||
| T60-60.8 | Work measurement. Methods engineering | |||
| T61-173 | Technical education. Technical schools | |||
| T173.2-174.5 | Technological change | |||
| T175-178 | Industrial research. Research and development | |||
| T201-342 | Patents. Trademarks | |||
| T351-385 | Mechanical drawing. Engineering graphics | |||
| T391-995 | Exhibitions. Trade shows. World's fairs | |||
| TA1-2040 | Engineering (General). Civil engineering (General) | |
| TA164 | Bioengineering | |
| TA165 | Engineering instruments, meters, etc. Industrial instrumentation | |
| TA166-167 | Human engineering | |
| TA168 | Systems engineering | |
| TA170-171 | Environmental engineering | |
| TA174 | Engineering design | |
| TA177.4-185 | Engineering economy | |
| TA190-194 | Management of engineering works | |
| TA197-198 | Engineering meteorology | |
| TA213-215 | Engineering machinery, tools, and implements | |
| TA329-348 | Engineering mathematics. Engineering analysis | |
| TA349-359 | Mechanics of engineering. Applied mechanics | |
| TA365-367 | Acoustics in engineering. Acoustical engineering | |
| TA401-492 | Materials of engineering and construction. Mechanics of materials | |
| TA495 | Disasters and engineering | |
| TA501-625 | Surveying | |
| TA630-695 | Structural engineering (General) | |
| TA703-712 | Engineering geology. Rock mechanics. Soil mechanics. Underground construction | |
| TA715-787 | Earthwork. Foundations | |
| TA800-820 | Tunneling. Tunnels | |
| TA1001-1280 | Transportation engineering | |
| TA1501-1820 | Applied optics. Photonics | |
| TA2001-2040 | Plasma engineering. Applied plasma dynamics | |
| TC1-978 | Hydraulic engineering | |
| TC160-181 | Technical hydraulics | |
| TC183-201 | General preliminary operations. Dredging. Submarine building | |
| TC203-380 | Harbors and coast protective works. Coastal engineering. Lighthouses | |
| TC401-506 | River, lake, and water-supply engineering (General) | |
| TC530-537 | River protective works. Regulation. Flood control | |
| TC540-558 | Dams. Barrages | |
| TC601-791 | Canals and inland navigation. Waterways | |
| TC801-978 | Irrigation engineering. Reclamation of wasteland. Drainage | |
| TC1501-1800 | Ocean engineering | |
| TD1-1066 | Environmental technology. Sanitary engineering | ||
| TD159-168 | Municipal engineering | ||
| TD169-171.8 | Environmental protection | ||
| TD172-193.5 | Environmental pollution | ||
| TD194-195 | Environmental effects of industries and plants | ||
| TD201-500 | Water supply for domestic and industrial purposes | ||
| TD419-428 | Water pollution | ||
| TD429.5-480.7 | Water purification. Water treatment and conditioning. Saline water conversion | ||
| TD481-493 | Water distribution systems | ||
| TD511-780 | Sewage collection and disposal systems. Sewerage | ||
| TD783-812.5 | Municipal refuse. Solid wastes | ||
| TD813-870 | Street cleaning. Litter and its removal | ||
| TD878-894 | Special types of environment Including soil pollution, air pollution, noise pollution | ||
| TD895-899 | Industrial and factory sanitation | ||
| TD896-899 | Industrial and factory wastes | ||
| TD920-934 | Rural and farm sanitary engineering | ||
| TD940-949 | Low temperature sanitary engineering | ||
| TD1020-1066 | Hazardous substances and their disposal | ||
| TE1-450 | Highway engineering. Roads and pavements | ||
| TE175-176.5 | Highway design. Interchanges and intersections | ||
| TE177-178.8 | Roadside development. Landscaping | ||
| TE200-205 | Materials for roadmaking | ||
| TE206-209.5 | Location engineering | ||
| TE210-228.3 | Construction details Including foundations, maintenance, equipment | ||
| TE250-278.8 | Pavements and paved roads | ||
| TE279 | Streets | ||
| TE279.5-298 | Pedestrian facilities | ||
| TE280-295 | Sidewalks. Footpaths. Flagging | ||
| TE298 | Curbs. Curbstones | ||
| TF1-1620 | Railroad engineering and operation | ||
| TF200-320 | Railway construction | ||
| TF340-499 | Railway equipment and supplies | ||
| TF501-668 | Railway operation and management | ||
| TF670-851 | Local and light railways | ||
| TF840-851 | Elevated railways and subways | ||
| TF855-1127 | Electric railways | ||
| TF1300-1620 | High speed ground transporation | ||
| TG1-470 | Bridge engineering |
| TH1-9745 | Building construction | |
| TH845-895 | Architectural engineering. Structural engineering of buildings | |
| TH900-915 | Construction equipment in building | |
| TH1000-1725 | Systems of building construction Including fireproof construction, concrete construction | |
| TH2025-3000 | Details in building design and construction Including walls, roofs | |
| TH3301-3411 | Maintenance and repair | |
| TH4021-4977 | Buildings: Construction with reference to use Including public buildings, dwellings | |
| TH5011-5701 | Construction by phase of the work (Building trades) | |
| TH6014-6081 | Environmental engineering of buildings. Sanitary engineering of buildings | |
| TH6101-6887 | Plumbing and pipefitting | |
| TH7005-7699 | Heating and ventilation. Air conditioning | |
| TH7700-7975 | Illumination. Lighting | |
| TH8001-8581 | Decoration and decorative furnishings | |
| TH9025-9745 | Protection of buildings Including protection from dampness, fire, burglary | |
| TJ1-1570 | Mechanical engineering and machinery | ||
| TJ163.13-163.25 | Power resources | ||
| TJ163.26-163.5 | Energy conservation | ||
| TJ170-179 | Mechanics applied to machinery. Dynamics | ||
| TJ181-210 | Mechanical movements | ||
| TJ210.2-211.47 | Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) | ||
| TJ212-225 | Control engineering systems. Automatic machinery (General) | ||
| TJ227-240 | Machine design and drawing | ||
| TJ241-254.7 | Machine construction (General) | ||
| TJ255-265 | Heat engines | ||
| TJ266-267.5 | Turbines. Turbomachines (General) | ||
| TJ268-740 | Steam engineering | ||
| TJ603-695 | Locomotives | ||
| TJ751-805 | Miscellaneous motors and engines Including gas, gasoline, diesel engines | ||
| TJ807-830 | Renewable energy sources | ||
| TJ836-927 | Hydraulic machinery | ||
| TJ940-940.5 | Vacuum technology | ||
| TJ950-1030 | Pneumatic machinery | ||
| TJ1040-1119 | Machinery exclusive of prime movers | ||
| TJ1125-1345 | Machine shops and machine shop practice | ||
| TJ1350-1418 | Hoisting and conveying machinery | ||
| TJ1425-1475 | Lifting and pressing machinery | ||
| TJ1480-1496 | Agricultural machinery. Farm machinery | ||
| TJ1501-1519 | Sewing machines | ||
| TK1-9971 | Electrical engineering. Electronics. Nuclear engineering | ||
| TK301-399 | Electric meters | ||
| TK452-454.4 | Electric apparatus and materials. Electric circuits. Electric networks | ||
| TK1001-1841 | Production of electric energy or power. Powerplants. Central stations | ||
| TK2000-2891 | Dynamoelectric machinery and auxiliaries Including generators, motors, transformers | ||
| TK2896-2985 | Production of electricity by direct energy conversion | ||
| TK3001-3521 | Distribution or transmission of electric power | ||
| TK4001-4102 | Applications of electric power | ||
| TK4125-4399 | Electric lighting | ||
| TK4601-4661 | Electric heating | ||
| TK5101-6720 | Telecommunication Including telegraphy, telephone, radio, radar, television | ||
| TK7800-8360 | Electronics | ||
| TK7885-7895 | Computer engineering. Computer hardware | ||
| TK8300-8360 | Photoelectronic devices (General) | ||
| TK9001-9401 | Nuclear engineering. Atomic power | ||
| TK9900-9971 | Electricity for amateurs. Amateur constructors' manuals | ||
| TL1-4050 | Motor vehicles. Aeronautics. Astronautics | |
| TL1-484 | Motor vehicles. Cycles | |
| TL500-777 | Aeronautics. Aeronautical engineering | |
| TL780-785.8 | Rocket propulsion. Rockets | |
| TL787-4050 | Astronautics. Space travel | |
| TN1-997 | Mining engineering. Metallurgy | |
| TN263-271 | Mineral deposits. Metallic ore deposits. Prospecting | |
| TN275-325 | Practical mining operations. Safety measures | |
| TN331-347 | Mine transportation, haulage and hoisting. Mining machinery | |
| TN400-580 | Ore deposits and mining of particular metals | |
| TN600-799 | Metallurgy | |
| TN799.5-948 | Nonmetallic minerals | |
| TN950-997 | Building and ornamental stones | |
| TP1-1185 | Chemical technology | ||
| TP155-156 | Chemical engineering | ||
| TP200-248 | Chemicals: Manufacture, use, etc. | ||
| TP248.13-248.65 | Biotechnology | ||
| TP250-261 | Industrial electrochemistry | ||
| TP267.5-301 | Explosives and pyrotechnics | ||
| TP315-360 | Fuel | ||
| TP368-456 | Food processing and manufacture | ||
| TP480-498 | Low temperature engineering. Cryogenic engineering. Refrigeration | ||
| TP500-660 | Fermentation industries. Beverages. Alcohol | ||
| TP670-699 | Oils, fats, and waxes | ||
| TP690-692.5 | Petroleum refining. Petroleum products | ||
| TP700-746 | Illuminating industries (Nonelectric) | ||
| TP751-762 | Gas industry | ||
| TP785-869 | Clay industries. Ceramics. Glass | ||
| TP875-888 | Cement industries | ||
| TP890-933 | Textile bleaching, dyeing, printing, etc. | ||
| TP934-945 | Paints, pigments, varnishes, etc. | ||
| TP1080-1185 | Polymers and polymer manufacture | ||
| TR1-1050 | Photography | |
| TR250-265 | Cameras | |
| TR287-500 | Photographic processing. Darkroom technique | |
| TR504-508 | Transparencies. Diapositives | |
| TR510-545 | Color photography | |
| TR550-581 | Studio and laboratory | |
| TR590-620 | Lighting | |
| TR624-835 | Applied photography Including artistic, commercial, medical photography, photocopying processes | |
| TR845-899 | Cinematography. Motion pictures | |
| TR925-1050 | Photomechanical processes | |
| TS1-2301 | Manufactures | ||
| TS155-194 | Production management. Operations management | ||
| TS195-198.8 | Packaging | ||
| TS200-770 | Metal manufactures. Metalworking | ||
| TS780-788 | Stonework | ||
| TS800-937 | Wood technology. Lumber | ||
| TS840-915 | Wood products. Furniture | ||
| TS920-937 | Chemical processing of wood | ||
| TS940-1047 | Leather industries. Tanning | ||
| TS1060-1070 | Furs | ||
| TS1080-1268 | Paper manufacture and trade | ||
| TS1300-1865 | Textile industries | ||
| TS1870-1935 | Rubber industry | ||
| TS1950-1982 | Animal products | ||
| TS2120-2159 | Cereals and grain. Milling industry | ||
| TS2220-2283 | Tobacco industry | ||
| TS2284-2288 | Animal feeds and feed mills. Pet food industry | ||
| TT1-999 | Handicrafts. Arts and crafts | |
| TT161-170.7 | Manual training. School shops | |
| TT174-176 | Articles for children | |
| TT180-200 | Woodworking. Furniture making. Upholstering | |
| TT201-203 | Lathework. Turning | |
| TT205-267 | Metalworking | |
| TT300-382.8 | Painting. Wood finishing | |
| TT387-410 | Soft home furnishings | |
| TT490-695 | Clothing manufacture. Dressmaking. Tailoring | |
| TT697-927 | Home arts. Homecrafts Including sewing, embroidery, decorative crafts | |
| TT950-979 | Hairdressing. Beauty culture. Barbers' work | |
| TT980-999 | Laundry work | |
| TX1-1110 | Home economics | |
| TX301-339 | The house Including arrangement, care, servants | |
| TX341-641 | Nutrition. Foods and food supply | |
| TX642-840 | Cooking | |
| TX851-885 | Dining-room service | |
| TX901-946.5 | Hospitality industry. Hotels, clubs, restaurants, etc. Food service | |
| TX950-953 | Taverns, barrooms, saloons | |
| TX955-985 | Building operation and housekeeping | |
| TX1100-1105 | Mobile home living | |
| TX1110 | Recreational vehicle living | |