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chemistry (28) 28
metallurgy (28) 28
general devices for heat treatment of ferrous or non-ferrousmetals or alloys (27) 27
making metal malleable by decarburisation, tempering or othertreatments (27) 27
metallurgy of iron (27) 27
modifying the physical structure of ferrous metals (27) 27
performing operations (4) 4
transporting (4) 4
mechanical metal-working without essentially removingmaterial (3) 3
punching metal (3) 3
rolling of metal (3) 3
alloys (1) 1
building (1) 1
building materials (1) 1
cladding or plating by soldering or welding (1) 1
climate change mitigation technologies in the production orprocessing of goods (1) 1
cutting by applying heat locally, e.g. flame cutting (1) 1
ferrous or non-ferrous alloys (1) 1
fixed constructions (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
machine tools (1) 1
metal-working not otherwise provided for (1) 1
soldering or unsoldering (1) 1
structural elements (1) 1
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (1) 1
technologies or applications for mitigation or adaptation againstclimate change (1) 1
treatment of alloys or non-ferrous metals (1) 1
welding (1) 1
working by laser beam (1) 1
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