DIFF Subgroup
C08K 3/40 Glass
Introduced: July 1974
Full Title
Use of inorganic substances as compounding ingredients > Glass
No child classifications to compare. This is a leaf node in both IPC and CPC.
C08K 3/40 Introduced: July 1974
Use of inorganic substances as compounding ingredients > Glass
No child classifications to compare. This is a leaf node in both IPC and CPC.