DIFF Subgroup
C04B 38/06 by burning-out added substances
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof > by burning-out added substances
CPC:
Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof (treating slag with gases or gas generating material C04B5/06 ) > by burning-out added substances
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Child Classifications
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