DIFF Subgroup
C22B 19/36 in blast or reverberatory furnaces
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Obtaining zinc or zinc oxide > Obtaining zinc oxide > in blast or reverberatory furnaces
CPC:
Obtaining zinc or zinc oxide > Obtaining zinc oxide (purifying zinc oxide C01G9/02) > in blast or reverberatory furnaces
No child classifications to compare. This is a leaf node in both IPC and CPC.