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PCE
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DIFF Subgroup
B01J 23/14

of germanium, tin or lead

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 germanium, tin or lead

CPC:

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) > of germanium, tin or lead

No child classifications to compare. This is a leaf node in both IPC and CPC.