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blasting (9) 9
heating (9) 9
lighting (9) 9
mechanical engineering (9) 9
performing operations (9) 9
transporting (9) 9
weapons (9) 9
chemistry (6) 6
metallurgy (6) 6
fixed constructions (5) 5
measuring (5) 5
physics (5) 5
testing (5) 5
casting (4) 4
powder metallurgy (4) 4
details of fluid-pressure systems, not otherwise provided for (3) 3
fluid-pressure actuators (3) 3
fluid-pressure actuators, e.g. servo-motors (3) 3
hydraulics or pneumatics in general (3) 3
measuring volume, volume flow, mass flow or liquidlevel (3) 3
metering by volume (3) 3
positive displacement machines for liquids (3) 3
pumps (3) 3
pumps for liquids or elastic fluids (3) 3
systems acting by means of fluids in general (3) 3
building (2) 2
casting of metals (2) 2
casting of other substances by the same processes or devices (2) 2
climate change mitigation technologies in the production orprocessing of goods (2) 2
compositions based thereon (2) 2
electricity (2) 2
foundations (2) 2
general tagging of cross-sectional technologies spanning over several sections of the ipc (2) 2
general tagging of new technological developments (2) 2
hydraulic engineering (2) 2
machine tools (2) 2
making metallic powder (2) 2
manufacture of articles from metallic powder (2) 2
metal-working not otherwise provided for (2) 2
metallurgy of iron (2) 2
organic macromolecular compounds (2) 2
processing of pig-iron, e.g. refining, manufacture ofwrought-iron or steel (2) 2
ship-lifting devices or mechanisms (2) 2
soil shifting (2) 2
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (2) 2
technologies or applications for mitigation or adaptation againstclimate change (2) 2
their preparation or chemical working-up (2) 2
treatment in molten state of ferrous alloys (2) 2
working metallic powder (2) 2
after-treatment not covered by subclasses c08b, c08c, c08f,c08g (1) 1
after-treatment of the shaped products, e.g. repairing (1) 1
apparatus for enzymology or microbiology (1) 1
basic electric elements (1) 1
beer (1) 1
biochemistry (1) 1
building implements or other building aids, or theiruse (1) 1
building materials (1) 1
cladding or plating by soldering or welding (1) 1
construction of roads, railways, or bridges (1) 1
conversion or distribution of electric power (1) 1
conveying (1) 1
cooling of internal-combustion engines (1) 1
cooling of machines or engines in general (1) 1
crushing, pulverising, or disintegrating (1) 1
crushing, pulverising, or disintegrating in general (1) 1
cutting by applying heat locally, e.g. flame cutting (1) 1
details or accessories of furnaces, kilns, ovens, or retorts,in so far as they are of kinds occurring in more than one kindof furnace (1) 1
drying (1) 1
drying solid materials or objects by removing liquid therefrom (1) 1
dynamo-electric machines (1) 1
electric switches (1) 1
electrotherapy (1) 1
emergency protective devices (1) 1
engine plants in general (1) 1
enzymology (1) 1
ferrous or non-ferrous alloys (1) 1
forms (1) 1
furnaces (1) 1
general processes of compounding (1) 1
generation (1) 1
handling building materials on the site (1) 1
handling thin or filamentary material (1) 1
handling thin or filamentary material, e.g. sheets, webs,cables (1) 1
human necessities (1) 1
hygiene (1) 1
indicating presence, absence, or direction, of movement (1) 1
kilns (1) 1
machines for making railways of all kinds (1) 1
machines or engines in general (1) 1
macromolecular compounds obtained otherwise than by reactionsonly involving unsaturated carbon-to-carbon bonds (1) 1
magnetotherapy (1) 1
measuring linear or angular speed, acceleration, deceleration,or shock (1) 1
medical or veterinary science (1) 1
microbiology (1) 1
milling (1) 1
milling grain (1) 1
mutation or genetic engineering (1) 1
ovens (1) 1
packing (1) 1
permanent way (1) 1
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