DIFF Subgroup
C25C 3/08 Cell construction, e.g. bottoms, walls, cathodes
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Electrolytic production, recovery or refining of metals by electrolysis of melts > of aluminium > Cell construction, e.g. bottoms, walls, cathodes
CPC:
Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence) > of aluminium > Cell construction, e.g. bottoms, walls, cathodes
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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