DIFF Subgroup
C09C 1/52 Channel black
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black > Carbon > Carbon black > Channel black
CPC:
Treatment of specific inorganic materials other than fibrous fillers (tenebrescent materials C09K9/00; luminescent materials C09K11/00); Preparation of carbon black > Carbon > Carbon black > Channel black
No child classifications to compare. This is a leaf node in both IPC and CPC.