DIFF Subgroup
C08K 3/36 Silica
Introduced: July 1974
Full Title
Use of inorganic substances as compounding ingredients > Silicon-containing compounds > Silica
No child classifications to compare. This is a leaf node in both IPC and CPC.
C08K 3/36 Introduced: July 1974
Use of inorganic substances as compounding ingredients > Silicon-containing compounds > Silica
No child classifications to compare. This is a leaf node in both IPC and CPC.