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DIFF Subgroup
B01J 27/30

of catalysts comprising compounds of sulfur, selenium or tellurium

Introduced: July 1974

Full Title

Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds > Regeneration or reactivation > of catalysts comprising compounds of sulfur, selenium or tellurium

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