DIFF Subgroup
C21B 7/16 Tuyéres
Introduced: September 1968
Title
Titles differ between systems:
IPC: Tuyères
CPC: Tuyéres
Full Title
Full titles differ between systems:
IPC:
Blast furnaces > Tuyères
CPC:
Blast furnaces (lifts associated with blast furnaces B66B9/06) > Tuyéres
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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