DIFF Subgroup
B01J 23/74 Iron group metals
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group > of the iron group metals or copper > Iron group metals
CPC:
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) > of the iron group metals or copper > Iron group metals
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1995.
Child Classifications
Navigate with arrow keys, Enter to open