DIFF Subgroup
C04B 11/262 Full Title
Calcium sulfate cements > ; starting from phosphogypsum or from waste, e.g. purification products of smoke (C04B11/02 takes precedence; chemical purification of smoke, fumes or exhaust gases B01D53/00 )
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.