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performing operations (19) 19
transporting (19) 19
chemistry (16) 16
metallurgy (16) 16
machine tools (13) 13
metal-working not otherwise provided for (13) 13
cladding or plating by soldering or welding (10) 10
cutting by applying heat locally, e.g. flame cutting (10) 10
soldering or unsoldering (10) 10
welding (10) 10
working by laser beam (10) 10
measuring (8) 8
physics (8) 8
testing (8) 8
ferrous or non-ferrous alloys (7) 7
treatment of alloys or non-ferrous metals (7) 7
investigating or analysing materials by determining theirchemical or physical properties (6) 6
alloys (5) 5
apparatus therefor (4) 4
basic electric elements (4) 4
electricity (4) 4
electrolytic or electrophoretic processes (4) 4
casting (3) 3
general devices for heat treatment of ferrous or non-ferrousmetals or alloys (3) 3
making metal malleable by decarburisation, tempering or othertreatments (3) 3
mechanical metal-working without essentially removingmaterial (3) 3
metallurgy of iron (3) 3
modifying the physical structure of ferrous metals (3) 3
powder metallurgy (3) 3
punching metal (3) 3
blasting (2) 2
cables (2) 2
changing the physical structure of non-ferrous metals andnon-ferrous alloys (2) 2
compounds containing metals not covered by subclassesc01d or c01f (2) 2
conductors (2) 2
electroforming (2) 2
heating (2) 2
inductances (2) 2
inorganic chemistry (2) 2
insulators (2) 2
layered products (2) 2
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (2) 2
lighting (2) 2
magnets (2) 2
making metallic powder (2) 2
manufacture of articles from metallic powder (2) 2
mechanical engineering (2) 2
processes for the electrolytic or electrophoretic productionof coatings (2) 2
processes for the electrolytic production, recovery orrefining of metals (2) 2
selection of materials for their conductive, insulating ordielectric properties (2) 2
selection of materials for their magnetic properties (2) 2
testing static or dynamic balance of machines orstructures (2) 2
testing structures or apparatus not otherwise provided for (2) 2
transformers (2) 2
weapons (2) 2
working metallic powder (2) 2
working or processing of sheet metal or metal tubes, rods orprofiles without essentially removing material (2) 2
artificial stone (1) 1
boring (1) 1
calculating (1) 1
casting of metals (1) 1
casting of other substances by the same processes or devices (1) 1
cements (1) 1
ceramics (1) 1
chemical composition of glasses, glazes, or vitreousenamels (1) 1
chemical surface treatment (1) 1
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (1) 1
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (1) 1
coating material with metallic material (1) 1
coating metallic material (1) 1
combined operations (1) 1
combustion engines (1) 1
compositions thereof, e.g. mortars, concrete or like buildingmaterials (1) 1
compounds thereof (1) 1
computing (1) 1
concrete (1) 1
counting (1) 1
counting mechanisms (1) 1
counting of objects not otherwise provided for (1) 1
current collectors (1) 1
diffusion treatment of metallic material (1) 1
electrolytic or electrophoretic processes for the productionof compounds or non-metals (1) 1
furnaces (1) 1
furnaces, kilns, ovens, or retorts in general (1) 1
general tagging of cross-sectional technologies spanning over several sections of the ipc (1) 1
general tagging of new technological developments (1) 1
glass (1) 1
hot-gas or combustion-product engine plants (1) 1
inhibiting corrosion of metallic material or incrustation ingeneral (1) 1
joining glass to glass or other materials (1) 1
kilns (1) 1
lime, magnesia (1) 1
line connectors (1) 1
mineral or slag wool (1) 1
non-metallic elements (1) 1
open sintering or like apparatus (1) 1
other working of metal (1) 1
ovens (1) 1
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (1) 1
refractories (1) 1
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