DIFF Subgroup
C09C 3/04 Physical treatment, e.g. grinding or treatment with ultrasonic vibrations
Introduced: July 1974
Full Title
Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties > Physical treatment, e.g. grinding or treatment with ultrasonic vibrations
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Child Classifications
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