IPC Main Group
C22B 4/00 Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
Introduced: July 1974
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- Subclass:
- PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
Related Keywords
electrothermal processesproducing or refining NON-FERROUS alloys by electrothermal processesproducing or refining NON-FERROUS metals by electrothermal processestreating ORES to obtain other metals, alloys or compounds by electrothermal treatment
4 direct subcodes
Child Classifications
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